If you are running a mod, BUG will no longer look in the CustomAssets folders for its config files. This was causing problems with people running BUFFY and BUG (in CA) since BUFFY would see BUG's config files.
The easiest solution is to copy BUG into VD so it runs as a mod. Just copy everything in CustomAssets to VD's Assets folder, creating one if necessary. BUG will use your existing settings files.
The problem with this is that every mod you run, including the ones that ship with BTS, cause BUG to fail. We can't copy BUG into every single mod we try, doesn't this defeat the purpose of having it run from custom assets in the first place?
For those of us that don't use BUFFY but do run lots of different mods, is there some way of reverting this back to 4.0 behaviour?