I've send a mail to support asking for a bigger filesize limit almost two weeks ago without getting any answer, send another mail yesterday, still no answer.

Also when I try to add external links (since the files are too big), as soon as I click on any of the platform icons the whole file upload section just disapears.
I just happened to have a download running a bit ago when I tried again, so the side loaded slowly and while the site was still loading I was able to select one of the platforms, but as soon as it finished loading and I clicked again it disapeared again. Checked with and without adblocker enabled. Using latest firefox.

I am getting the same bug

Got the same bug while adding external files

I have the same issue, was unable to add links for game. Will wait for fix then.

For anyone in this thread who hasn't seen the other one, an admin has commented saying the external download bug should be fixed, and it works for me now, so hopefully it's working for all of you as well.