Tried to update DNS settings for my domain just now. I can't get past the login stage because it redirects in a loop as soon as I submit my details.

At least one other person on Twitter is seeing the same problem. They've included a gif in their tweet. https://twitter.com/omar_anwari_/status/1597776412559409153

Looks like they're working on it https://www.namecheap.com/status-updates/archives/73591