So no matter what, on a clean install after the first run of the game, running the GA or snapshots, every run after the "launcher Helper quit unexpectedly." comes up. Sometimes a right on start of the game, sometimes a few minutes into playing.
This is a clean install on a new install of Mac OS 10.14.3. I can duplicate this on 2 different Macs.
How about fixing the root bug. Clean INSTALL OF 10.14 and still happens. This is your bug and it has been open for 2 years!