I'm using 4.06, the most recent one and got this bug like 2 weeks ago where a group was not baking AO on top of another at all. After i set up a new baker with the same settings and files it worked perfectly again.
When baking AO using multiple texture sets, objects that are using one texture set aren't affecting AO on objects using another texture sets as if "Ignore groups" were unchecked. I created a simple scene to demonstrate the bug. 1. First object using texture set #1 2. Second object using texture set #2 As you can see AO…