I have Always this black stripe troughout my screen, only in the editor and also ingame, not in other programms. In some parts of the editor it does not happen. Only on trees and objects it seems. I have the following pc:
I74970K, GTX970, 8gig ram, windows 10. plus the newest ue4: 4.7.6. in the earlier version it also gave this black line.
see image here:
http://s30.postimg.org/yx5by5w8t/stripes.jpg
What is the reasson behind these black lines? Somehow the ue4 editor does not work perfect with my new hardware?