I’ll just repeat here what i replied in the PM so others can see it too:
That’s what other penetration trace types in material response map are for. For thin solid objects like this, “solid” mode should work better than default back trace (which is for objects made of multiple parts, at the cost of skipping small gaps)
Anyway, **version 1.82 **will be out in a few days, fixing issues with replication of EBBarrel components attached to non-pawn actors.