Intel Core i7, 16 Gb RAM, NVidia GeForce RTX 2070
Windows 10 x64
Broken: 2.81 f61a8a2abd07 from 2019-10-09
Short description of error
Looks like there is another combination of mode switching that causes Blender to crash, it happens when you switch from Sculpt to Vertex Paint while Paint Mask - Face Selection was active within Vertex Paint.
Exact steps for others to reproduce the error
- Open Blender, add Basis Shape key to the default Cube.
- Enter Vertex Paint Mode and activate Paint Mask - Face Selection.
- Switch to Sculpt Mode.
- Switch back to Vertex Paint and Blender will crash.
- Did some additional testing and was able to reproduce with Edit Mode instead of Sculpt Mode as well
Here is my test file just in case - open it and switch to Vertex Paint.