Signal Account Locked for 6 days

Extremely unhappy as I recommend Signal to everybody over WhatsApp but I can say that WhatsApp never locked me out like this ...

I predominantly use Apple products including Signal on Apple iOS

Recently I bought a modest Android phone as a test phone to show my students

I moved the Signal account to the Android Phone (from my Apple iOS iPhone latest 18.1.1)

I then went back to the iPhone and started Signal

It asked me to re-register and it sent and SMS with was received and injected into the Signal Screen

it then asked me for my PIN, which I of course typed in correctly. Its a 4 digit pin I dont use anywhere else

I immediately got an account Locked Screen

There was no opportunity to re-enter the PIN, however it was correct anyways.

WTF Signal! I rely on signal on a daily basis.

I even donated multiple times.

I sent them a support request. Nothing back so far.

Not Happy