My Pro Tools was not broken before I installed BIAB 2019. I don't know anything about installing ASIO drivers. I don't modify Pro Tools at all - when it gets broken, it stays broken for a long time because I don't know how to fix it. But it has been stable and working since version 11 and I just used it to record some live music before BIAB messed it up.

BIAB has no problem playing on its own, so obviously some drivers are working. I hate it when newly installed programs mess up what was already working.

Perhaps I should refrain from commenting further. I am furious about this because I need to record with Pro Tools now. I will wait until the tech support kicks in. I hope they are not out for the rest of the year.