Support for Drupal 7 is ending on 5 January 2025—it’s time to migrate to Drupal 10! Learn about the many benefits of Drupal 10 and find migration tools in our resource center.
See http://gyazo.com/793a1e8a1ee8f8fd944d58a9784fc003.png
It's two bugs, only one of which is Masquerade's:
1) User module isn't verifying a category exists
2) Masquerade doesn't check category when form altering
Sounds similar to #693582: Masquerade options appearing in other tabs of user edit screen but that's long fixed.
Comments
Comment #1
andypostDuplicate of #1170078: Trying to clean up user interface....
Comment #1.0
andypostupdated to clarify core and masq. bugs