Just thought I'd ask:
I exported to NW.js on Windows, it runs fine (actually nice performance), but when I close it it leaves ghost processes running (3 nw.exe processes to be exact) which prevent me from reopening the program, unless I restart the entire computer or close'em manually..
Is anyone else having this problem or found the solution?
Your version of NW.js is probably affected by this issue.
Update to a more recent version to prevent ghostprocessing. (Affected versions: v0.22.0 - v0.26.6)
If you are on the latest version and use the chromium-arg mentioned in the report, I might have to report this as a bug again.