Colliders duplicating by themselves

For some reason, Unity is making several copies of existing 2DColliders on some of my GameObjects everytime I run the game. When the program tries to move an object with 30 colliders on it Unity goes crazy (obviously).

The thing is, everytime I solve it by moving the object in question and doing ctrl+Z while the game is not running, so maybe is a bug? I really don’t know what the cause is or how to manage this problem.

I’m currently deleting every extra collider in my Awake() function, but it really isn’t a proper solution (mainly because when I stop the execution those colliders are back, and increasing every time).

Any ideas?