So I’ve come to realise there’s some odd jank when it comes to crouching.
Standing on a ground with a teleporter just beneath doesn’t trigger the teleport, however upon crouching in the same safe spot it does for unknown reasons.
From what I can understand the hitbox of the player must sink into the ground when you crouch instead of lowering the actual size, this may not be the case but this is the only theory I have to this phenomenon.