I have downloaded the 2019 launcher for Mac OSX multiple times and received the same message. Please see the 1st attached image. Also, I tried to install an older launcher from 2016 (which I’ve used before), which said it needed to update. I let it update and when I try to open it, it gives me the 2nd attached image. I’ve used UE4 on a Mac before for different OS versions from 10.9-10.11… so is something wrong with the .dmg for OSX? Or is there a way to get an earlier version of the launcher?