Bluesky "incorrect DID returned"

i had and deleted a bluesky account in which i had set up the option to point AT to my domain. (been several months since i deleted it)

i created a new bluesky account today, tried to set the domain name as the UN, and it shows: Incorrect DID returned - even after there was time spend allowing the change to propagate.

the old host txt entry was long removed from the dns entries at my registrar. and, of course i entered the new one for this domain.

is there any place else (in that i should look to clear the old DID entry?

thanks all!