[SOLVED] Changing clip speed in kdenlive just deletes the clip

Never had this happen before, it just started now. So pretty much as title, when I change the speed of a clip, instead of actually changing the speed, and making it shorter/longer on the time line it just deletes it! Why is it doing this and is there a way to make it actually change the speed instead?

Running Linux Mint (19 I think? Not sure how to check) and Kdenlive version is 19.12.3.