How does the leaderboard problem happen?

I have a leader board in my game (it is a fighting game) where it shows which weapon the player is using, I have a working script where people can switch there weapon and the leader board value changes fine and all. However the script that looks at the leader board value for each player and hands out the weapon for each one only works when I manually set it with admin commands when I do it via local scripts in GUI's it does not work, I do not understand how this works?

Some extra information: FilteringEnabled is on. The local script is in a textbutton in StarterGUI (I have a frame and everything too). The script that handles the value of the leader board and gives out the weapons is a normal script in ServerScriptService.