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.