Sun2 not spinning

A student is using the sun2 sprite [the silver one] and while the sprite appears it does not spin. Any suggestions?

It is really hard to know without looking at the code. Can you please provide a link to the project?

I am not sure if this works, but https://studio.code.org/s/csd3-2018/stage/22/puzzle/8?section_id=1997456&user_id=47008981

this link does not work. You need to goto the page the project is one, click the share button, and post that link for us.