Sorry, but I did, and I get the "Server internal error" message immediately, regardless of when I try to sign in. I will need additional troubleshooting help, "works for me" isn't going to solve this, it appears. =(
EDIT: Doing more troubleshooting, I found that there appears to be a bad interaction between the FLUX Studio password dialog box and pasting. I use a password manager, and was pasting my password into the dialog box.
When PASTING an 8-character password in, I get 18 obfuscation dots! And I get a "Server internal error" message.
When TYPING an 8-character password in, I get 8 obfuscation dots (as one would expect), and the password works as expected:
It would appear that PASTING a password into the FLUX Studio Cloud sign-in dialog does not work properly, and produces a misleading error message.
Maybe there's some sort of encoding madness going on during paste that's changing the password?