Very annoying bug

Topic of Interest: Many bugs with sounds/physics

1. Throwing weapon

Sometimes, when i throw a weapon, it disappears and enemy don't took any damage from it.

2. Sand worms

When i kick a player to the hole, sand worm doesn't appear, only a sound of death is played

3. Arrows, arrows

Arrow can't fly by a "crusher", just stops like hit a wall.

Sometimes arrow disappears and enemy don't took any damage.

That bugs are very annoying, i can't play the game with that bugs and i must reset it.

(Sorry for my bad english, i'm from Poland)