Either there were multiple updates or you need to reinstall it. Honestly, that shouldn’t happen unless your storage is full but I’ll take your word it’s not. Before re-installing make sure to verify your game’s files by clicking the options to the right of “Launch” and click verify and see if that fixes it first.
So i was downloading fortnite and it says i need an update which is cool i have plenty of space but when it “completes” instead of letting me play i have to re-download the update as if it were looping. Is there any way to fix it?
I am currently downloading High Sierra OS right now.