When you upload via the submit button on itch, the upload process also is part of the submission - normally. But i heard that since IGMC is larger scale and higher stakes there was some modifications (code it think) to this jam which may have affected the submission process, but unfortunately some of us found out too late and the time was up. The rules did not specify the actual process of making sure how the game was submitted and it gave instructions that we thought we understood from previous itch game jam submission process (i did 26+ game jams for fun, this is the only game jam that did this to me - which was not fun because i stayed up till 3AM and couldn't sleep for 3 more hours to alleviate the stress, even more LOL!). I enjoyed making my game with my team. I am just disappointed that it wasn't listed on the entries for me to share to my friends and team.
Thanks again for the reply. I am pretty sure you are busy especially with this high stakes jam, so I appreciate that you take the time to reply.