Upload Issue

For some reason the game is not uploading or running properly on itch.io.

Tried uploading just the HTML file: It uploads, but doesn't run.

Tried uploading the full zip file: It uploads, but there's no option for 'run in browser'. Itch.io page claims "No file provided to embed".

After multiple attempts and googling the issue I am thoroughly stumped.

Note: The game does run on the local machine -- tested via unity's "Build And Run" option. Itch.io just doesn't seem to like the file for some reason. Troubleshooting is ongoing.