My physics object falls through my landscape at certain angles/heights

The static mesh collision is set to “block all dynamic” but half the time it still falls through. I tested multiple copies at different angles all at once. Some fell through, some bounced and settled. How do I fix this?

You can try to check Use CCD option in Collision of Actor. Also, maybe you can try to make landscape collision thickness greater in landscape params. One more thing - to decrease physics calculation step in project settings…