Dumb question time. I signed up via lemmy.world & can subscribe to communities on other instances. Im trying to sub to communities on lemdro.id but see the error message “This thread was retrieved via lemdro.id. You are not logged in there”

The only place i can find to log in is on my search page which shows the lemmy.world instance i signed up to. Whilst adding lemdro.id instance & I’m requested to sign in to it but my login credentials are refused.

Surely we don’t need multiple log ins for multiple instances? Or is it because lemdro.id is very new & isn’t yet federated to lemmy.world (although I can see lemdro.id & its communities just fine).

Thanks in advance for holding a newbies hand.