Whether or not the selected bone can be changed while in Weight Paint mode seems to depend on how User Preferences -> Input -> Select With has been set.
I like working with the LMB rather than the RMB and so I have it set that way. It’s been a while since I did any weight painting, but I have a vague memory of being able to switch bones while doing so. But for some reason, I can’t. I’ve tried every combination of qualifiers and mouse buttons I can think of but the only thing that seems to work is to switch my preferences to use the RMB for Select With.
So, I have some questions:
- Has something changed in recent builds that affects this behaviour?
- Is it a bug?
- Is there a way to do this without having to change my preferences?