Center of mesh faces not correct

i have a strange behaviour of the mesh generator (Mesh UV):
When i create an UV-Meh for a rectangular surface, the mesh size isn’t constant and the centers aren’t in the middle:

If i move the whole thing to 0,0 it looks like expected: (9.7 KB)

I think this is down to a common issue with accuracy when you work far from the origin. If you move your surface to the origin, it should work.