Realm freezes after 1.18.30 update

Ever since 1.18.30 i have been experiencing lots of crashes with realms i'm not sure what is causing this issue it simply happens randomly after a while then the realm freezes (Players/Mobs stop moving) and it doesn't let me log back onto the server for half an hour losing all my prgresses. Unfortunately as i said above i don't know how to reproduce this bug but it somehow happens when there's more than 1 player online at the time. I also tried to close/reopen the realm several times; replacing the world with a new one; closing and unistalling the app and deleting every single file but nothing worked.