Portal invitiation/sign-up errors with Apple devices

Portal invitiation/sign-up errors with Apple devices

I have so far had 2 customers tell me they were unable to get the portal to accept a password when they followed the Invite link on Safari on Apple devices.

The first was trying to sign up via his iPad, eventually he gave up and did it on his PC

The second is getting the same issue on his Mac

His feedback:

I get “Invalid Email  Address or Password” error

Hitting password reset just clicks the submit button and nothing happens

Is this a known issue?