Thank you for your exported layout.
I had a quick look now, it seems to be fine in both preview and on the Windows client:
I did only one thing to your layout, it was invalid because it had an empty region (in bottom right corner). Other than that it’s fine.
Perhaps you could try to install IE11 and make a change in registry, browser emulation, as described here: Enabling HTML5 in the Windows .net Player
and see if that will solve this issue.
Side note: it also made me hungry, but that’s ok 