I have tried this on https://mysignins.microsoft.com/security-info choose Add new authentication method > Authenticator > not microsoft authenticator > grab the secret key, generate the 6 digits token to register but it never works tried for 30 mins (with fresh tokens)
It will depend on how you are creating the QRCode. I just tested it in my implementation and everything is fine. Can you share the QRCode creation code?
I have tried this on https://mysignins.microsoft.com/security-info choose Add new authentication method > Authenticator > not microsoft authenticator > grab the secret key, generate the 6 digits token to register but it never works tried for 30 mins (with fresh tokens)