Unable to login to messenger after deactivating facebook - IOS
So i decided to take a break from facebook and deactivated the application from my mobile phone, whilst doing so i selected to retain access to messenger, but when i try log into messenger i get the following error: "unable to login - an unexpected error occurred. please try logging in again. I can however browse on my phones browser to the desktop version of the app rather than the m.version and log in successfully, so it's not a credential issue, but each time i install messenger, it has cached my previous login, but i've cleared every instance i can find.
What i've tried so far:
Re-install the application
Reboot the phone
Remove links between instagram/meta/facebook through the meta centre and each app respectfully.
Gone to apple account > sign in with apple and removed users there
Tried to use the remove my account function from messenger directly
Confirmed no built in password vault has cached my password/login
successfully logged into messenger whilst using the desktop client version on a web browser on my phone as m.version gets the same error
raised it VIA apple support (no avail, they just said to log as a bug)
confirmed IOS and messenger are on the latest versions
What i plan to try:
Re-install the native facebook app on IOS and deactivate it through there, rather than using messenger (F) button to load up facebook and do it that way.
Would appreciate any additional thoughts.