preformatted keyboard interactive connection dialog box
I use pam_captcha to make my sshd more resistant to brute-force attacks. But this prevents me from login from Termius as the captcha is not rendered correctly, thus making it impossible to read.
Here is a picture of a correctly rendered captcha:
Here is how Termius renders the captcha:
I'm also running into this. I have TOTP configured through PAM on my server and it correctly displays the PAM prompt on macOS, while on iOS it's displayed as a "password" prompt. I can still login though.