So, a while ago i had some issues with the crossbow.

I found a crossbow and a quiver, and i could at first fire. However whenever i fired the bolts disappeared.

Then i found another bolt. So i emptied the bolts from the quiver and tried to combine the found bolt with the remaining bolts. However both the found bolt and some of the bolts in the quiver disappeared.

Then i put the remaining bolts that were left in the quiver and loaded it in the crossbow. Then instead i could not fire at all.

About 3 more times in different sessions i have found a crossbow and tried with both quiver and single bolt in the crossbow and tried to fire, however i could not fire at all. My friend could hear the "clicking sound" when you fire but the bolt would not fire.

Then yesterday i could fire with a crossbow, however the ammo(bolts) is still bugging for me, sometime work and sometimes not. The fired bolts almost disappear every time i fire at an object, ground or zombie.