My Unreal Engine 4 engine keeps crashing (MacOS Sierra)

I want to play Fortnite battle royal on my mac but when the launcher almost finishes updating, it crashes.
I restarted the engine several times now but it is still crashing.

I have the same problem !

same problem for 3 weeks, still no answer from my report/ solution on the web
CHEERS unrealengine for your good support … i paid 60eu and cannot play my game…

WORSE SERVICE IVE SEEN IN MY LIFE !!!

I’m also having the same problem but with TSW

LoginId:b9061b464c13248876cb15bae05ec096
EpicAccountId:

You do not have any debugging symbols required to display the callstack for this crash.

Hello,

Thank you for reporting this issue, although Answerhub is for issues related to Unreal Engine 4 in particular. For support with Fortnite and for reporting these types of issues, please go to http://fortnitehelp.epicgames.com/