Copying project from Mac to PC - Map changes are gone?

I have my first ever project that I created on my MacBook, and I want to build it for HTML5. I was unaware at the time that the Mac version of UE4 cannot package to HTML5. So, I am trying to transfer the project from my Mac to a PC.

I have copied the entire project folder from “~/Documents/Unreal Projects” to the equivalent folder on the PC.

However, the map that I had been editing and saving this whole time was “Minimal_Default” which is the map that loads when you start a blank project with starter content. I made a lot of changes to the map on my Mac. However, I find that when I load it up again on PC, it is back to the default map that I started with. All changes are gone. All of my other content is still there, the character, animations, meshes etc. just no longer in the map.

As far as I know, the maps are stored in the project tree and not elsewhere, so what I have on PC should be the same Map as I copied from the Mac. What gives? Is there something I am doing wrong?

EDIT: I should mention that the UE version I have on Mac is 4.7.1 and on PC it is 4.7.2. Though I don’t think that should make a difference.

Did you get any solution?