Weird anchoring bug

You can write your topic however you want, but you need to answer these questions:

  1. What do you want to achieve? : FIX THIS DUMB BUG

  2. What is the issue? so i have an anchored hitbox , everytime i run into the hitbox the player unanchore the part client side , i dont know why this happend but it makes players able to unanchor map etc

  3. What solutions have you tried so far? i tried welding the part ai tried keep updating the cframe in client but this will lag client if i keep updating everypart in the map so i need to fix this

my sprint script is very basic it just change the walkspeed nothing else no touched event nothing , i am not sure if this bug because of animations or something but i need help asap

here is video showing the bug :

Check every script in your game that you think may be the problem, because this is not a roblox bug under any circumstances. (At least I think, could be wrong.) But check your scripts and make sure to check scripts in other places and not just workspace

i am sure i have no script unanchor stuff

can you show me the script in the goal and the sprint script