I was able to edit weights, but now somehow it’s broke. If I edit a group, symmetric group breaks, auto weight mapping stops working correct, etc.
Here’s my model with 2 symmetrical groups Shoulder.R and Shoulder.L
If I go to Shoulder.L, paint anything, then go back to Shoulder.R, it turns into this
What can cause this bug? I’ve tried to reattach mesh to armature, change blender version to 2.81, create new project and append everything, but nothing has worked
PS: It also seems that it’s depends on PC. On my dad’s laptop weight paint works fine, but I can’t select armature in viewport