OK you’re in the same boat as me then - and did the exact same thing as me with Uphold - the problem ended up being on the Brave side. There is some logic behind the region settings, although it was a bit confusing when rolled out.
I used a UK ID with Uphold but work in another (supported) country which I chose on Brave. That was my mistake. By resetting I lost a small amount of BAT but was able to select UK (even though not there) and reconnect to Uphold. The fraud settings aren’t looking at your IP as possibly expected, rather that you come from the same country that you verified with ID on Uphold. Everything works again now for me. Give it a go.