Bug when disabling Udt

I think there is a bug when disabling my UDT. Version: 8.1.0 (b2020110211)

  1. When I disable my parent UDT, all tags within my child UDT goes bad.
  2. When I disable my UDT. None of the tags goes bad

I see this is probably same as BUG-14820, but that is quite old.

Sorry for reposting if so.