Dropped tools picked up by others

Anyone know why when I drop a tool on the ground, and another player picks it up. The original player who had the tool teleports to the new player who picked it up and is stuck to the other players hand?

Only some of my tools do this, and they all appear to be the same.

Make sure your tools have Massless true, CanCollide false, and Anchored false.

They are cancollide false, and anchored false. I will see if massless is causing the issue.