I was having the same issues with uploading the various Mojave packages.
Anything over 5GB would fial. I ended up using a Windows 10 Based PC
with chrome browser to upload the files to our Jamf cloud instance and
it worked perfect.
I encountered this issue with the Mojave Installer as well. Eventually
what worked for me was uploading the package via Jamf Cloud using a
Windows Based PC. For whatever reason the Mac would always fail the
upload process using both the Jamf Pro appl...
