Restricted ASIN fiasco… Are you getting it too?

I’m a wholesaler and have hundreds of listings I sell on. Recently, about one listing every week is getting flagged for “Restricted ASIN” and the listing gets deleted (multiple other big and small sellers on it) and results in inventory getting starnded (tens to thousands of units on some listings).

Seller support doesn’t help obviously and only fix has been to Create Removal Orders.

I believe the issue is the UPC code is likely wrong or invalid.

Are any of you seeing this? Is there a way to update UPC code before this happens? I’ve seen some listings have 2 or 3 UPC codes but when I go to edit the listing, UPC code is locked.