If it's any consolation, I have the same problems. I LOVE BiaB, and have been updating annually, most recently to the audiophile version, for many years. But a subset of features (substyles, oohs, pushes, Amplitube integration, etc) just don't work, or work but don't sound as musical as the other stuff. So I hug the parts that work for me and hope the next release gets to my challenges. A poor response, I know. But a world with the BiaB we have is better than one without...

DC Ron
BiaB Audiophile
Presonus Studio One
StudioCat DAW dual screen
Presonus Faderport 16
Too many guitars (is that a thing?)