Item falling through floor

Hi - I have an item - a hammer - which I’ve put 2 simple box collisions on (one for the head and one for the body). When my character needs to drop the hammer I turn on physics so it drops to the floor. However, sometimes it falls through the floor - but not all the time.

I have block all on my collisions, and the floor has collisions too. I’ve tried different floor meshes (simple planes, 3rd part floors from asset packs) and they all have this issue, although oddly it doesn’t seem to fall through my landscape, only static mesh floors.

I’ve tried turning on ccd, but that doesn’t solve it. Any idea/help?? I can’t figure this one out.

Thanks!

Wild guess, I’d try it with one collision box covering the whole object.

Thanks for the suggestion. This didn’t make a difference, but I found by replacing my floor’s (plane) with a thicker box collision it worked.

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