If I remember correctly, the app/company you’re working for is fairly tech debted (I’ve audited it before) which would explain that. It’s unlikely that it’s changes in Bubble that have triggered bugs, but rather new features (or old features with bugs that were never caught).
Limited, they thought they deployed a fix, but then the issue still occurs so it’s being reinvestigated. I say limited in terms of results - they might’ve put a ton of work in behind the scenes but just not been able to identify the problem.
I don’t know the specifics of what you’re trying to do, but Create a list of things via API connector is powerful, and if not, as you note, a little serverless function or Xano function can do heavy data processing for cheap, and do it quicker than Bubble would do it.