[Bug]Spawning actor in multiplayer standalone game does not work?!

Hello, could you please help me with this problem where an actor (my Inventory) does not spawn correctly and promoting to variable makes it NULL / not valid as soon as 2 mpeople are connected in a multiplayer game in stnadalone

i just spawn my inventory actor on begin play in the char- delay does not help either and it works fine in pie :frowning: