Just trying to reproduce this one, the only case I found. When your site Selector is Site 2. And Permission as listed below, this will appear. @Starker3 @tsteur is that sound about the right reproduction?

Site 1:

• Admin:
  User A
• No Access:
  User B

Site 2

• Admin:
  User B
• View:
  User A

@peterhashair That might be how to reproduce it, if you want I can test it and see if I get the same results with such a setup?

@Starker3 that would be great.

Hey @Starker3 did you get a chance to have a look here?

Also @peterhashair is this fixed in #18796 ?

@justinvelluppillai @peterhashair The setup that Peter gave for reproduction doesn't work for me to reproduce this.
I had the users configured as follows:
Site 1:
Admin: User A
No Access: User B

Site 2
Admin: User B
View: User A

For Site 2 both User A and User B were able to see each other in the list when copying dashboards. The Super Users were not visible in that list, but I'm not sure if that is intentional or not?

@Starker3 Do you remember if the users that weren't shown might have had write access?
Looking at the code it seems we check if a user has admin or view access. But users with write access might be ignored.

@Starker3 Are you sure the user had view access? I was able to reproduce it with a user having write permission, which then wasn't visible for an admin. The PR would fix this.

@sgiehl I don't remember the specifics for the permissions level of the users when I encountered this error.
I can test it again though and see if I can reproduce it. I'll get back to you once I've tried that.

@Starker3 if you are able to reproduce that with vier permission, please reopen the issue. For write permission this should be fixed with 4.11. then.