There seems to be a major leak in the editor for 4.7.6.
If I leave the editor running overnight, by morning 90% of system resources have been taken and the processes do not seem to close successfully without killing the process
The above is after all UE4 applications have been closed and the processes are still hanging around
EDIT: 03-May-2015 12:56pm
Just watching memory usage for UE4 process tick up constantly right now, am at 87% physical memory usage
Attached dxdiag info