PEDIT issue...

Intellicad

While attempting to join several polylines and lines together I encountered the following:

Command: pedit
Multiple/Select polyline to edit:
Edit polyline: Edit vertices/Close/Decurve/Fit/Join/Linetype-mode/Reverse/Spline/Taper/Width/Undo/: j
Select entities:
Entities in set: 1
Select entities:
1769226648 segments added to polyline

Notice the number of reported segments added! In fact This problem was narrowed down to a single polyline / line pair that did not share a common endpoint. The Y-coordinates differed by a small amount.

Later I tried a similar test intentionally created with a 0.01 mis-match in the y-coordinate. This time the command reported 1 segment was added but none actually were. Attempting to change the layer of the line causes a crash. Audit immediately before the layer change reports no error.