Game Is Locked in Running mode

I have over 5000 hours in the game, and I have never had an issue like this before. In the Steam Launcher the game is listed as being in "running" mode.

A week or so ago I was Playing Space Engineers, the game did not shut down. I tried force closing Steam, when it came back up Space engineers was still running. I shut down my computer. When I restarted, Space Engineers was still running. I tried deleting all temp files on Space Engineers, it did not work. I tried verifying all Files. stated all files were verified. I tried updating Steam. Says all files are up to date. I forced Steam into an offline mode, started up Space engineers offline, and reconnected to online, Still could not shut down Space Engineers. Forced Steam into an offline mode, and deleted Space Engineers. Tried reloading the game, Download failed in the last 10% of loading stating files were in use.

Finally I ended up having to format my hard drive as I could not fully uninstall steam as it kept saying that "files were being used by another program". Scouring through my hard drive I found that the file for space engineers was still there.... Formatting commenced.

After reinstalling Steam and reinstalling space engineers, however the game would not run. The first time I tried to start the game, it stated something about cloud Status could not be updated. I chose the play anyway option, but the Steam game page went back to the "Play" game button. Every time I click on "play" it just drops back to the "play" game button. I resynced the cloud saves, and tried again, still would not open. Gave up for the night and shut my whole system down. Next day I logged back into Steam, and Steam has Space Engineers listed as running again. Clicking on stop again did nothing.