OverlapMultiByChannel can't find objects with ECollisionChannel::ECC_GameTraceChannel1

[lab-one]

Thinking maybe this is an engine initialization bug, I also follow suggestion from here

Why can't I trace with a custom channel?

My custom channels also work weird. I cant’t make reliable trace with them, but when i change line trace channel for VISIBILITY the same blueprint works just fine. And also when i change Trace response of the of custom trace channel of the ground mesh (just a square plane) from block to ignore objects stat to fall through the ground. So now im thinking of deleting my custom trace channels and work with custom objects collisions

and assigned predefined collision profile name to a static mesh placed on the level, but unable to receive that object as well.