I have had a few students that cannot get images to appear on their page in U2L7. The coding is correct - and 98% of my students get the images to appear correctly. For example, on bubble 7, the frog pic that is already available isn’t appearing on the page. Any suggestions?
My gut reaction is that something is wrong with the code, but who knows. If you can, post code from one of the broken pages. If the code is correct, I would submit it as a bug report.
I had something similar to this happen in my class. It wasn’t necessarily the things the students had coded that weren’t showing up - rather they were images that should’ve been there from Code. I used the version history and restored the original and everything worked fine after that. Out of 90 or so students, it happened about 3 times.