Triangle maze problem for small amount of triangles in grid

[CamaroTheBOSS]

For small triangle mazes 15x10 and smallers some triangles does not have a way to the neighbours when creating dual graph:

This is caused probably by bug in adding faces when creating planar graph (blue one). It is always one triangle and this specific triangle has wrong edges (edges are in different places in the grid), so center of this triangle is computed wrongly too. This causes that the node in dual graph which should be way to this triangle is outside it, so this triangle is skipped.

[CamaroTheBOSS]

After rebuilding the program (update it to 2.0 version) the problem does not occur