What system / browser(s) are you testing on?
Have you tried disbling the addons?
Is there anything showing in the browser console?
Is it possible to upload a .capx here or provide a link so we can test it also?
System: 6 core 3.6ghz CPU, 16gb ddr3 ram, GTX 770 2gb GPU, SSD hard drive.
Browser: Firefox
Do you mean browser addons? The only one I think I have is an ad blocker, I don't see how/why that's affecting it but I will try disabling it. As for browser console I'm sorry, I don't understand what you mean
Well the game is the breakout tutorial from this site, I would upload the file if I knew how to do it. But I don't think I do. Sorry