I just scanned my code and it looks like there's an error that happens only in the MV version when a tilesets/event/... has an empty graphics assigned. That truly was difficult to spot.
I fix this as soon as possible! Thanks for reporting!
I actually force refreshed and rdled the file twice just in case that was happening, but apparently Chrome *still* managed to find a way to continue downloading the previous version. I just tried again, the same thing happened.
After manually copying and pasting the code, everything appears to be functioning. I will report back if I find anymore bugs but this is so far really amazing. Thank you!