Snap, on some traces/edges is not really snapping on when measuring them

[Tobey16]

The snap feature does not work the same on every edge:

• The circled edge (the first one) does not snap if the mousepointer (not visible) is held on the left side of it.
• The first edges seem to have these problems, but the following edges not.
• The blue bottom trace and the red one dont have this issue (marked with "OK").
• When the mouse is held on the right side, the snap feature works as expected. I added the dsl file, which must be renamed.

DSLogic PLus-la-241106-162819.dsl.csv