at first, a "OpenGL Not Supported" message box appears and then the Editor instantly crashes after the "OK" button has been pressed.

I tried again, but this time, passing in the "-opengl" flag. it got farther – but then showed something along the lines of "OpenGL on Mac is going to be deprecated" – it was too quick to get a screen capture of it.

then again, the editor crashed: with the following output (on command line):

./ -opengl

*** Recognized (0x62) family*** (20 cols X 12 rows) using raw16bitRange= 484, thresh8bits=  3, zsignal_per_pixelsum= 43
Steps to Reproduce

compile UE4 Editor for OSX via XCode
run UE4 Editor

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Affects Versions4.14
Target Fix4.14
Fix Commit3185252
Release Commit3185252
CreatedNov 3, 2016
ResolvedNov 3, 2016
UpdatedMay 2, 2018