Source: dolfin Version: 2019.2.0~legacy20240219.1c52e83-11 Followup-For: Bug #1088865
The mesh itself seems to be fine.
>From Francesco's example, both python 3.12 and 3.12 give
>>> mesh.cells()
array([[0, 1, 4],
[0, 3, 4],
[1, 2, 5],
[1, 4, 5],
[3, 4, 7],
[3, 6, 7],
[4, 5, 8],
[4, 7, 8]], dtype=uint32)
That suggests the problem is in the high level cells() function
(distinct from the cells() method in mesh).
