UE4 Beam emitters problem (I'll never stop looking for an answer, one day i'll find!)

Whenever i add “Source” or “Target” module to a beam emitter it says “NO ASYNC TICK”. I can’t find any answer how to fix this. Please if anyone knows, at least if you know what ASYNC TICK means, i’ll be grateful, very very grateful.

This one?

Yeah. To fix this i used 4.19 to create and then import to 4.24, but this error doesnt mean too much. Source and target modules still working with or without this. Thanks for your attention.