We made some changes when migrating the site from one AWS account to another, and this resulted in some ill-configured images in various parts of the site. We have fixed the problem. You may need to clear browser cache to fix the issue.
If you sale them let me know. I would like to get the one that does not work to experiment on. As for what is wrong I have no clue. I have never know the entire thing not working. Sounds like a resistor may have when out. I take it you checked to see if the wires are all attached.