Hi. You've probably noticed those two already but I feel like I should give you feedback anyway.
-When in LAN (so maybe in MP too, dunno), only the host can enter the Vault in Selrock.
-When a chaotic inscription gives you a skull/eye and you're in a LAN game (so maybe in MP too, dunno) then all players can see the gem but only one can get it - it's shared loot, not individual. If it's intentional - sorry.