Hey there! Press Tab to move focus into the API key or Base URL field (mouse-click focus is what’s not working) - then typing and Cmd+V work fine.
This isn’t intended behavior and isn’t anything on your end. It’s an issue we’re tracking, the fix is already in, and it’ll come with an upcoming update. You’re on the newest stable build, so nothing to update to just yet.
Merging this into the main thread so you get updates: Models: API Key / Base URL inputs not editable.