if this script is ran with the turtle costume with pen tip, the sprite grows in size and all movements are offset (set x 0 y 0 places the sprite at the wrong position). rotating the sprite or switching costume resets it.
why would a move block even affect size? how does a set position block fail to set the position correctly after that?
just tested on the website and the offline version (8.0.0) on librewolf (basically firefox)