I (and others) have reported several problems in the past about ACW, this is just an example from a few months ago:
https://www.pgmusic.com/forums/ubbthreads.php?ubb=showflat&Number=790630&page=1Here's the video I uploaded in that thread, where the odd behaviour of the ACW can be clearly seen:
After this new thread (threads about problems with ACW seem to be cyclical here) , I tried again following the steps on the video Noel posted, got similar results, and wrote my previous post.
However, I've tried again using the "Open" command instead of draggin & droppin the audio (import, which is the method used in the video) to BIAB, and the whole thing worked well. It looks like some of the bugs have been fixed in the last months, or that (part) of the problem was using "import" instead of "open" command, but the problem might also be related to the specific audio file being used, I'm not sure. More testing is definitely needed.
Having said that, the fact that so many experienced users find this feature troublesome is a clear indicator, at the very least, that this feature is hard to use and that there is a lot of room for improvement here.