We have seen in multiple separate environments and tenants, and different apps, the same strange behaviour since today: all labels within galleries have now borders around them, where they were not visible until yesterday...
It is not "all" of them, it seems only the labels where the name contains "title" have this (like "subtitle_1", "title1",..., but "label_1" is not affected)...
anyone has a clue what is causing this?