Ubuntu 12.04 and Debian Squeeze
Broken: 2.74 official release build
Short description of error
UVMap disappears; sometime Blender crashes
Exact steps for others to reproduce the error
I did not succeed to reproduce the full algorithm of the blend file creation, but attached a prepared one. It has been created and edited in previous Blender versions, but strange behavior appeared in 2.74, when I tried to use python API for split normals.
The file attached here has script for reproducing this behavior.
Tested official blender-2.74-linux-glibc211-x86_64 on Ubuntu 14.04.2 LTS and Debian squeeze
- If I call calc_normals_split on active object, something happens with UVMap_0: it dissapears from "UV Maps" panel when mouse cursor drag over it. Sometimes Blender crashes.
- If I call calc_tessface, blender crashes.
If after point 1) you save the file and reopen it, the names of UVMaps will change.
Alexander (Blend4Web Team)