Any firearm ceases to cause any damage (Fallout 76)

Anyways,any firearm ceases to cause any damage (scale KHP diminished , and after a third of a second instantly refilled) after about 30min. 1 hour and the mobs do not react to the shots, not agrada. But if you begin to beat with melee weapons - all the rules.
Pumping the rifles, miles almost did not take.
In General, do not know how to play now.
Was someone, if you know how to solve it pleeease reply