Thanks for the advice Nadnerb.
Apologies for being rather slow here, but how do I achieve both the things you stated? Sounds like I need the exit region to be
inside the enter region otherwise it won't exist in the subworld, but then the exit region needs to be
outside the enter region othrewise I will exit straight back into the subworld. I'm confused
I have tried having both regions exactly the same and sometimes I can enter and leave fine, but then find that in 50% of directions I meet resistance whilst trying to leave and then fall through the floor once I manage to overcome the resistance and walk off the collider.
Tricky.....