It worked fine as always for me this morning. Installed patch7 a little while ago. Ever since, when the M.E. goes to open, I get a white screen o' death and a Microsoft error report. Have tried multiple times & restarted my pc & tried. Same result every time. The offline missions are still playing fine, but the editor crashes every time on start up.
From Pyro's Patch 7 post:
"Offline missions now create their temp files in the misstemp folder instead of the missions folder."
This misstemp folder was not created in my AH folder with the patch.