Fresco on iPad pointing to outdated libraries

I created a new Adobe account last year, as my previous one was through my former workplace. Ever since, I have been unable to access my CC Libraries through Fresco on my iPad. All my other apps (AI, PS, etc), both desktop and mobile versions, can freely create and use assets through my libraries, but Fresco seems to be pointing to a handful of "old" libraries created under my previous account. I cannot access the current libraries no matter how many times I reinstall Fresco, log out and in, or any number of "weird tricks" I've tried to get Fresco on board with the other apps.

Over this past year, I have spent numerous hours on the phone and chat with different Adobe Help techs, who ask me to jump through the basic troubleshooting steps ad nauseum, only to promise to "contact me later" with a solution (which never comes). This post is a desperation move.

I'm hoping someone has had a similar issue that they have a solution for, or is more familiar than Adobe Help Techs with how Fresco and CC Libraries work.

Summary: New Adobe ID created, Old Adobe assets migrated, Old Adobe ID deleted (?), New Adobe apps all work fine with CC Libraries except for Fresco on iPad, which seems to be pointed to the Libraries of the Old Adobe account. Works created in Fresco are visible in the "recent" files on the other apps, so it is only the libraries that are the problem.  Any suggestions?