I cannot launch UE4 editor

I cannot launch UE4 editor. It gets stuck at 36% initializing and will not continue. I am running a macOS Mojave version 10.14.5. Can someone help me please?

Sometimes the installer stops, but keeps working. Now if your installation takes a long time and does not progress, a problem occurs.

macOS Mojave 10.14.4 at the moment and my Epic Games Launcher is borked. It might have something to do with all of the video commercials that are loading for games now but I can’t access my buttons in the upper left because they’re either too small, blocked by art, or [LAUNCH] appears over them when I try to access a directory such as “Library”. If anyone knows how to fix it I would be much obliged. Perhaps if I can safely reinstall the Epic Games Launcher without losing all of my downloaded content (some of which is no longer available on the market) then maybe that would fix it?