It’s a frequent issue for this module.
Same suggestions are made each time: Try incognito, try another browser, adjust your zoom settings.
I could not see a definitive “aha” thing in the other threads on the forums for how the person got through. Sometimes using edge helped, but in some threads they ended up just posting their BSA ID and someone manually credited the training completion.
I would still try the windows zoom setting and browser setting:
- Right click your windows desktop
- Select “Display Settings”
- Under “Scale and Layout” select 100% for size of text and apps
- Go back to training and try again
- Reset this later if you preferred it the old way
I do know as a sometimes-web-designer this setting gives me fits. You’ll design a web page on a PC and then people with this setting on have a different experience. Windows defaults it to something like 125% or 150%.
I don’t know if this will resolve, but it seems like something non-obvious and worth trying.
Sorry, wish there was a silver bullet answer, but at least … you’re not alone? 
Small comfort I know.
