I have over 20 active domain mappings, but it appears the Domains list (Network Admin > Settings > Domains) isn't listing all of them. It seems to be maxing out at 20, with no pagination or ability to show more.
When I view my Sites list, it shows the domain mapping for each site. Some sites show their active domain mapping here, but are not included in the Domains list.
So there are active mappings that I can't edit or delete from the Network Admin.
Also- when I try to create a domain mapping that has already been created (but is not listed), it then creates a duplicate! I can see there is a duplicate domain mapping created when viewing the Sites list.
Seems this is a bug that needs fixing.