This is a continuation of a now closed bug report which is not fixed and currently causing harm to my game.
When spam equipping a or switching between tool(s), there is a high chance that parts will be collidable for a frame despite CanCollide being false and Massless true. This results in very weird behaviors and in many cases directly impacts gameplay.
I’ve created a simple place file that demonstrates this issue:
broken tools.rbxl (54.4 KB)
Here is a video of said place file:
Here is how it currently impacts my live game: