New Carlson 2026 / IntelliCAD 13.1 and 12.1 build (260827) is posted

New Carlson 2026 / IntelliCAD 13.1 and 12.1 build (260827) is now available for testing.

IntelliCAD side:

• Fixed selection control behavior in case of switching between list and tree modes in Pallette.

• Fixed crash during tab/window close

• Fixed compounded double movement when adjusting grips in clipped Viewport

• Fixed crash after unloading proppalette

• Fixed error applying the 'Convert to Polyline' option in the SPLINEDIT command

• Fixed errors during opening some drawings

Carlson side changes:

Survey

• Added support for the "USA Amtrak/NAD83(2011)/Amtrak ANECCS" and "USA Amtrak/NATRF2022/Amtrak ANECCS" projection systems (CC-23030).
• Fixed a stability issue in cogoutil (CombineAdjacentDirections) (CC-21927).

Hydrology & Sewer

• Improved LandXML data import functionality (CC-23061).
• Improved sewer data handling during LandXML export (CC-23065).
• Fixed an issue in Field to Finish (F2F) where incorrect pipe label text styles were applied (CC-22748).
• Fixed an issue in Field to Finish (F2F) where commas in point descriptions were not processed correctly for pipe depth (CC-22519).

Road Network & Profiles

• Resolved an issue in the Section File Editor where interpolation generated incorrect elevations by ignoring profiles (CC-23026).
• Added a warning alert when loading mixed road profiles in the Profile Editor and Road Profile Editor (CC-23071).
• Updated Road Network to allow selecting a new file for Edit Template Point Profile (CC-23104).
• Fixed incorrect behavior for custom grid ranges in paper sheets (CC-23017).

Mining & Geology

• Fixed a stability issue in the Pit by Rate tool (CC-23054).
• Configured CUBE_BLKM to automatically minimize the viewer when prompted for an inclusion boundary (CC-17168).
• Fixed an issue in CHANSAM4 where channel sample exports to file were missing attribute data (CC-23063).
• Fixed grade averaging for blocks with multiple attributes in BLKSTATS (CC-22955).

Please let us know if you encounter any issue which will have to be fixed immediately or other issues which are new.

As always, if this build is problematic, a full official install can be used to restore.

Thank you,

Leonid.

New Carlson 2026 / IntelliCAD 13.1 and 12.1 build (260730) is posted

New Carlson 2026 / IntelliCAD 13.1 and 12.1 build (260730) is now available for testing.

IntelliCAD side:

• Fixed incorrect scaling annotative ATTRIB

Carlson side changes:

CAD Platform

• Fixed a bug where drawings containing AutoCAD Civil 3D geolocation information prevented the PRINT routine from executing. (CC-22680)

• Corrected scaling issues for annotative points in IntelliCAD 13.1. (CC-19797)

• Fixed block attribute scaling errors in IntelliCAD 13.1 and 14.1. (CC-21754)

Survey & SurvNET

• Added support for SPCS 2022 geographic-to-grid transformations. (CC-22574)

• Fixed the EDM Calibration routine in SurvNET to properly process datasets exceeding 99 observations and 30 degrees of freedom. (CC-22661)

Road & Profile Design

• Fixed an issue where redrawn profiles omitted update prompts when linked to other profiles via the "Auto" setting. (CC-21037)

Hydrology & Sewer Design

• Importing a sewer network from a 3D polyline now automatically sets the outfall location for trunk lines and provides clearer prompts for selecting outfall locations when tributary lines are present. (CC-22797)

• Fixed an application crash when removing the active sewer structure from the network. (CC-22800)

• Fixed a display bug where a deleted sewer structure was not redrawn after exiting the dock dialog without saving changes. (CC-22801)

GeoFluv & Mining

• gfRegrade now includes an option to toggle colored highlighting and channel name/drainage density annotations that update dynamically with polyline and parameter adjustments. (CC-22556)

• Added backward compatibility for TrueColor mine timing hatch commands by substituting TrueColors with their closest CAD color equivalent. (CC-12634)

• QuickPit - Added crash protection measures when adding triangulation into a model. (CC-22373)

General System & Stability

• Mitigated drawing transfer delays caused by slow server responses during conflict file downloads. (CC-22660)

• Resolved a crash triggered when loading specific subDmesh entities in CUBE. (CC-22769)

Please let us know if you encounter any issue which will have to be fixed immediately or other issues which are new.

As always, if this build is problematic, a full official install can be used to restore.

Thank you,

Leonid.

New Carlson 2026 / IntelliCAD 13.1 and 12.1 build (260626) is posted

New Carlson 2026 / IntelliCAD 13.1 and 12.1 build (260513) is now available for testing.

IntelliCAD side:

• Fixed crash and freeze after object selection in drawings with dynamic blocks

• Fixed crash caused by AMD driver upgrade

• Fixed inability of creating a tangent between two circles with oppositely directed normals

• Fixed Explorer hang ups on drawings with large number of layers and XREFs

• Fixed Parallel osnap does not work for setting Mtext rotation

• Fixed TEXT invisibility setting switches spontaneously after editing

• Fixed missing polygon viewport grips

• Fixed invalid version number value during .NET application initialization

Carlson side changes:

Survey & SurvNET

• Restored functionality for Flip and Mirror Text commands inside the right-click contextual menus. (CC-22540)

• Fixed an issue where Undo failed to revert text moved via MoveText. (CC-22507)

• Added vectors to the total station mark-to-mark distance section for grouped unadjusted observations. (CC-22472)

• Corrected a calculation issue where SurvNET extracted the wrong "Points Used" count during Resection record parsing. (CC-22545)

• Updated the 2D/1D Vertical Adjustment Report to show the explicit shift values for benchmarks. (CC-22546)

• Fixed Geographic-to-Grid transformation accuracy for legacy UTM projection systems within Draw-Locate Points. (CC-22351)

• Fixed a crash on program exit within SurvNET. (CC-22515)

Road Design & Roadnet

• Fixed a bug where manual adjustments to intersection PVI caused incorrect surface triangulation. (CC-21815)

• Resolved an application crash encountered when opening Roadnet. (CC-22394)

• Added file path validation for output files to prevent "unable to write TIN" errors. (CC-22450)

• Improved intersection transitions between roads using slightly different template IDs. (CC-18751)

• Fixed an issue where IFC output was not generated for certain builds. (CC-22581)

• Draw Profile now alerts the user if no Road Network is set when attempting to label intersections. (CC-22630)

• Resolved a crash inside the Draw Sections settings dialog window (DSSettingsDialogAction). (CC-22378)

• Allowed "Elevate Pad" options to accept "Ratio" configurations without error. (CC-22403)

• Corrected "Profile to 3D Polyline" to prevent duplicate vertices from generating around PVIs and ensured vertices are only added when elevations calculate cleanly. (CC-22479, CC-22487)

• Fixed an issue where the Grid Setup dialog box was too tall for some screen resolutions. (CC-22623)

• Increased border padding in the Horizontal Elevation Label Box when text is drawn vertically. (CC-21244)

Hydrology & Sewer Design

• Fixed a bug where flow arrows disappeared when pipe labels with leaders were moved horizontally. (CC-22359)

• Resolved a software crash in the sewer spreadsheet editor when modifying laterals. (CC-22380)

• Corrected "Sewer Net to Points" to properly reference pipe inverts at the structure when exporting at station intervals from downstream structures. (CC-22402)

• Fixed a bug in the sewer dock dialog editor that prevented structure descriptions from being cleared. (CC-22419)

• Fixed a display bug where certain columns failed to render in the sewer spreadsheet editor. (CC-22444)

• Increased the decimal display precision for runoff coefficients (CN) to 3 places. (CC-22356)

• Fixed an issue where the Rainfall Library Import routine failed to close its dialog box upon completion. (CC-22659)

Mining & Geology

• Fixed pit floor triangulation for top-down designs blending directly into existing topography. (CC-22138)

• Fine-tuned MTNTOP autorun TIN constraint behaviors to calculate overall volumes more accurately. (CC-19262)

• Fixed area and thickness volume errors when using TIN constraints in MTNTOP. (CC-19262)

• Allowed grid creation to utilize coreholes with duplicate names while successfully reporting the duplicate errors. (CC-19220)

• Added an overall surface-to-pit volume calculation option to reports, running independently of specific strata volumes. (CC-20835)

• Fixed grid-to-grid volume errors in MTNTOP and allowed operations to proceed when grids are mismatched. (CC-20835)

• Fixed a CHREPORT5 bug where zero-thickness strata were duplicated across pages when a layer ended exactly at a page depth boundary. (CC-22320)

GIS

• "Place Google Earth Image" now automatically thaws frozen layers before placing an image. (CC-21963)

• ArcGIS Service data now defaults entities to the current layer only when the entity and its feature definition lack valid built-in layer data. (CC-22348)

• Fixed a bug where replacing Google Earth images with automatically resolved links failed. (CC-22283)

Point Cloud Module (PCM)

• Fixed selection set generation inaccuracies when picking by polyline while heavily zoomed out. (CC-20416)

• Improved consistency of structural calculations within the PCM Extract Volumes routine. (CC-20416)

Drafting & General Tools

• Ported the REMOVE_DEAD_DATALINKS cleanup utility over to IntelliCAD. (CC-22368)

• Resolved application exit crashes in cntr_grd (CC-22516) and general null type-checking crashes (CC-22461).

• Fixed an inspector crash when opening drawings that contain no defined projection system. (CC-22496)

• Fixed a failure in AECCleaner where it would skip proxy object removal on select drawings. (CC-22506)

Please let us know if you encounter any issue which will have to be fixed immediately or other issues which are new.

As always, if this build is problematic, a full official install can be used to restore.

Thank you,

Leonid.

New Carlson 2026 / IntelliCAD 13.1 and 12.1 build (260513) is posted

New Carlson 2026 / IntelliCAD 13.1 and 12.1 build (260513) is now available for testing.

IntelliCAD side:

A workaround to AMD driver update crash has been implemented. We are also working directly with AMD driver team to produce a driver update that fixes the issue as it affects many IntelliCAD versions that we would not be able to update. 

Carlson side changes:

Road Design & Roadnet

• Fixed a bug causing road TIN generation errors and bad TIN merges. (CC-22354)

• Resolved a crash that occurred when displaying the network tree view. (CC-22296)

• Template point centerlines dialog now automatically detects the line's side relative to the main road. (CC-22210)

• Added ability to import and export special station lists via .uds files. (CC-21207)

• Fixed an issue where the "Full Range" button failed to extract the proper station range. (CC-20354)

• Fixed a template template display bug where the fill bench was not visible. (CC-21333)

Hydrology & Pond Design

• Updated C-factor and pond design routines to store, display, and report C-factors up to 4 decimal places. (CC-22321)

• Saved the culvert design control type within the pond design file for use in routing calculations. (CC-22322)

• Fixed a NOAA download freeze caused by an infinite recursive loop in acad_invoke(). (CC-22085)

Survey & Annotation

• South Azimuths now display correctly when using compressed line labels with AUTOANN. (CC-22293)

• Corrected azimuth calculations within the Point to Point Table. (CC-21610)

Please let us know if you encounter any issue which will have to be fixed immediately or other issues which are new.

As always, if this build is problematic, a full official install can be used to restore.

Thank you,

Leonid.

New Carlson 2026 / IntelliCAD 13.1 and 12.1 build (260506) is posted

New Carlson 2026 / IntelliCAD 13.1 and 12.1 build (260506) is now available for testing.
Following issues were resolved:

IntelliCAD 13.1:

• Fixed broken copyclip on template path customization. Clarified messages to user

• Fixed incorrectly shown dialog for dynamic properties with selection. Improved error handling for dynamic properties

• Fixed width factor not been set for AcDbText

• Fixed crashes occurred on object selection in old drawings

This update focuses on refining LotNET automation and streamlining Civil3D data conversions. We have also introduced more robust settings for profile drafting to reduce repetitive prompts and improve visual accuracy.

Survey Module (LotNET, annotation)

• Setback Precision: Resolved a bug that caused errors when creating setback lines and ensured setbacks are correctly drawn for lots with sub-area polylines on back edges. (CC-21929, CC-22178)

• Driveway Tools: Fixed a specific issue in LotNET that caused driveway routines to return errors. (CC-22143)

• Area Management: Area Tables now automatically sort themselves whenever new labels are added or existing ones are updated. (CC-21618)

• Civil3D Compatibility: Enhanced the Carlson-to-Civil3D point conversion to support attributes on "Layer 0" and improved visibility settings for exported point attributes. (CC-20666, CC-21859)

• Coordinate Systems: Fixed projection system issues for Australia/GDA2020 project grids. (CC-21907)

• Barscale Visuals: Changed the default "ByLayer" color for barscales from red to white for better visibility on standard backgrounds. (CC-20557)

• Legal Description Writer: Corrected a calculation error that led to improper direction reporting for arcs. (CC-22071)

Civil Module & Road Design

• Drafting Control: New settings in Carlson Configure allow you to control prompt behavior for profile erasing; a new "Remember My Choice" toggle has been added to suppress future repetitive prompts. (CC-22203)

• Roadnet Intersections: Collinear centerlines will no longer trigger an erroneous intersection, and we’ve removed unnecessary intersection breaklines when drawing in 2D. (CC-22287, CC-22275)

• Profile Capture: Improved recognition of minor stations and ensured horizontal axis labels correctly handle alternate profile types, such as Hydrology surfaces. (CC-22257, CC-22202)

• Centerline Editor: Fixed a bug where second-element parameters were unintentionally modified when the "Hold Other PI points" setting was active. (CC-22227)

Hydrology & Sewer Design

• Leader Accuracy: Fixed a bug involving sewer profile leader endpoints by saving leader length in XData, ensuring labels remain correctly positioned during redraws or moves. (CC-22167)

• Sewer Profile Drawing: Resolved an issue where settings from an existing grid would overwrite current sewer profile draw settings. (CC-22233)

• Table Sizing: SWRTBL tables have been updated to ensure proper sizing and scaling within your drawings. (CC-22106)

• Error Handling: Added descriptive error messages to clarify why calculations might fail when drainage data is missing. (CC-22276)

GIS

• Geodatabase Imports: Fixed a bug that zeroed out elevations during "Geometry Only" imports and resolved an issue where database columns failed to populate if their name matched the insertion layer. (CC-22072, CC-21898)

• ArcGIS Services: Added a "Validate Service Certificates" toggle, allowing you to bypass network certificate verification when accessing Feature or Image services. (CC-22066)

General Tools & Stability

• Point Cloud Basic: The "Align/Register" routine is now available to users of the Point Cloud Basic product level. (CC-22200)

• Crash Fixes: Resolved multiple stability issues, including a crash involving arc leaders in AutoCAD and a dialog action crash. (CC-19480, CC-22242)

• Resolved issue with certain CFG file causing settings files to grow in size upon loading

Please let us know if you encounter any issue which will have to be fixed immediately or other issues which are new.

As always, if this build is problematic, a full official install can be used to restore.

Thank you,

Leonid.

New Carlson 2026 / IntelliCAD 13.1 and 12.1 build (260415) is posted

New Carlson 2026 / IntelliCAD 13.1 and 12.1 build (260415) is now available for testing.
Following issues were resolved:

IntelliCAD 13.1:

• Fixed some dynamic properties unable to be loaded after unloading ARX application

• Fixed sudden AUTOSNAP changes on opening drawing

• Fixed invalid layer names during STEP file import

IntelliCAD 12.1:

• N/A

Please let us know if you encounter any issue which will have to be fixed immediately or other issues which are new.

As always, if this build is problematic, a full official install can be used to restore.

Thank you,

Leonid.