items bugged

hi guys just need some help to see if this has happen to anyone else

so when i start up on the server i play on my items like guns and tools work until i swap a item over in the bottom bar if i select a pick axe that i just built and swapped it into the bottom bar it just bugs and you cant see or use the item and i can only open a door once most of the stuff is buged and it is only me and my friend that are having this problem on the server out of 50 people is there a admin thing that can do this to a player?