Alt+DoubleClickLeft also triggers Alt+ClickLeft
If you want to jump to a certain time frame by using Alt+DoubleClickLeft on the trajectory position you want to jump to, this also triggers the action of Alt+ClickLeft which moves the trajectory point. So right now, you change the trajectory when you actually just want to jump to a certain position.
UPDATE: Maybe this is only an issue when using MacOS.
Edited by Juliane Adrian