Hi telric, I just test Sleeping Mod A21 on me and my girlfriends server
*server open and join through steam client
Me as a host sleeping work fine when no player on server (only me in server)
But when my girlfriend join my server and she or me step on bed (any bed)
She will got error null exception on isbloodmoon variable (I think it was same problem as A20 that you told us)
But me as a host is fine got no error, error is happen only on who join the host server.