When I try to change my email address to a new one with a "+" in it (Gmail alias) then I don't get an error but I don't get a verification code. I tried resending it, checked my spam folder etc. When I changed my email to another one without the plus sign the verification code arrived right away.

Oh and after entering the verification code for the latest address the UI showed me settings with the previously tried one (with the "+" in it) but that's another bug, after refreshing the page the proper email was shown. (I'm using Brave browser)

I'll be glad to help with this further.

BTW, thanks for an awesome app!

Tomek