Apparel Size Names Being Changed

Has any other apparel sellers (or sellers of anything with size variations) been experiencing sizes on listings being changed out of nowhere?

The size of the child ASIN will be changed but the child ASIN title will remain the same. We have been getting many customer messages/feedback about receiving incorrect sizes or asking to ensure we ship out the correct size. Upon investigating what was happening its easy to confirm by looking at the variation wizard that the size name has been changed because the title is still the previous size.

All of our products are FBA so we aren't even able to substitute the correct size that was meant to be purchased.

Obviously, since we are not the brand owners we are unable to make the needed corrections so then we end up with dead inventory because the correct sizes no longer exist or they get kicked off the parent ASIN.

The image below is an item where we offer many sizes/color variations but the ones outlined in red have had their size names changed incorrectly. Now we have to close the ASINs and pull all inventory out of the fulfillment centers because Amazon won't fit it since we are not the brand owner. You can see the original size in the title and even in the size map column on the right, yet the actual size name that displays on the detail page is changed causing customers to unknowingly purchase the incorrect sizes. Amazon should send out an alert when this happens that way FBA sellers would at least have a change at avoiding returns by being able to be proactive rather than reactive.