When I enter certain chunks, my realm gets "disconnected from server." One player in my realm crashes the realm every time they join, as their character is in one of those chunks upon logging in.  I can play in certain areas on my PlayStation 4, The player that cannot log in / is crashing the realm is playing on Nintendo Switch. 

Sometimes when I log back in after being "disconnected from server" my progress is up to date, sometimes it reverts back, up to 30 minutes or so.

Please let me knw what can be done here,. I bought Realms+ to avoid these crashing issues.