Hi,
I’ve done some tests with 4 computers. Only one of them seems to make mistakes. If I paint at the “defect” computer, at all other computers the mesh painting is damaged like in the picture above (looks equal at these 3 computers). If I paint at one of the 3 computers then it looks correct at the 2 other “correct” computers but at the “defect” computer the mesh is painted full white.
I’ve deleted “Saved”, “Intermediate” and “DerivedDataCache” at the defect computer with no change.
The same failure now is at a different level with one mesh. It is the “Water” mesh again. But other meshes seems to be correct. Maybe the Mesh itself is incompatible with mesh painting in some cases? I’ll put the mesh in the Attachment: