In my game, there is a sliding mechanic that uses PlatformStand for the Humanoid. When equipping a weapon, it connects itself to a Motor6D on the character’s Right Arm. After a weapon is equipped, sliding with no motion and Shift Lock enabled moves the player slightly into a weird direction. After unequipping, (which destroys the weapon model entirely,) the problem still persists but it does not happen if the player has not equipped anything before.
External MediaThe weapons have the Massless property enabled on all blocks and I am not holding anything besides the key to slide once I have no momentum.