When my friends are playing online I am unable to join their worlds or even see my friends on my friends list. They play on PS4 and Switch and I play on PC. I am the only one unable to join or even receive invites and they are unable to see me as well or invite me in their world's. This has happened a lot and we have tried restarting our devices and apps on both ends and nothing works. Please help resolve this issue. Thank you!