For our purposes, we are allowing users to download marketing materials that have been uploaded at a very large size (sometimes 1gb or larger) but on these downloads, the file doesn't actually finish the download. It just freezes. I think it is because the file is so large. It seems to have the problem with only files over 500mb.
We upgraded from Free to Pro to see if that would be the fix. It did not resolve that issue but the additional features are super helpful too!
We did do testing - The files do download when just linked to them. They don't download as individual files when using the free downloads shop page.