I have this same issue for some time now after reinstalling my phone and laptop. Can’t get uphold connected to my verified uphold wallet.
For what I read, I should have disconnected my wallet before uninstalling or such and apparently all my 4 slots are “in use” at the moment?
Doesn’t look like Brave is doing much about it. Have read multiple threads about this. Contacted Uphold they say this management lays within Brave & Brave support can help you. But until now haven’t been able to get it workin any more.
Older post, same (unresolved) issue