Metal bug on nVidia GPU causes editor lock

Hi,

Here’s a bit of update. Today a rebuilt the UE4 with debug settings (from branch 4.11) and tried the following:

  • On a hackintosh (Core i7 3770, 32GB
    RAM, GTX 780) I could reproduce the
    bug easily.
  • On the same hackintosh I swapped the
    the GPU to a GTX 760, I could still
    reproduce it BUT it was much harder
    to do.
  • Because of the hard reproducibility I
    went back to the MacPro and tried to
    make it crash (4.11prev-4) but after
    20 minutes it still wouldn’t
  • I don’t have access to the iMac (not
    mine), so I couldn’t retry on that
  • In Xcode I tried to debug, but the
    problem is that I would need to do a
    capture frame on the exact frame
    which would be the first to fail. I
    have no idea if thats even possible.

Hope my little update helps.
-Mac