When attempting to close the game window either from the “X” on the window itself or clicking the “stop” button in the editor the game will often freeze and refuse to close, force quitting through Task Manager or Steam does not work either. The only way to stop the program and free the memory it takes up us to restart.
It does not happen every time but it is often enough to be a problem. I am using the latest version of AGM and my GPU and OS are also up to date. Any info or help will be much appreciated.
I appreciate the response. However after just trudging along and dealing with it so I could get to a certain point in my project, the issue just stopped. I have no idea why. Thanks again for your help and attention.
If the window is a submenu, this issue has been fixed in the latest version. The cause was that when objects were created (especially generated) within a submenu, closing the window would trigger a bug if the submenu contained objects or generated objects. This has been fixed by the official team.
Coming back to this because it is still happening. I must have gotten a lucky streak before. TO explain the situation a bit better:
While in the game editor if I click “Run the Project” or press (F5) the window the project opens into will often not close when the “X” of the game window is clicked, nor will it close when “Stop Running Project” is clicked or (F8) is pressed. Right clicking on the program in the bar and choosing “Close window” will also not close the window. When trying to end the program in the Task manager the option to “End Process” is available but nothing happens when it is chosen. It just sit in RAM unchanged. To be clear AGM continues to run fine and I am able to edit and save and even run the game again (it opens in a new window in addition to the game instance that will not close) I have tested and the additional game windows will also sometime stick and refuse to close. I have let them stack up to three times just to see if it would and it did. The issue is the RAM the stuck windows take up. The only thing to do to clear them is to restart the computer entirely.
I have dug into my machine to see what if anything might be happening on my end. Unfortunately I cant find anything in the logs that points me in any helpful direction.
If there is any information I can collect and pass along I would be glad to.
I am only working on one project at the moment so I have not tested this in other or new projects. I would be happy to pass the project along. Where would be good to place to send a DL link?
or press (F5) the window the project opens into will often not close when the “X” of the game window is clicked, nor will it close when “Stop Running Project” 
is clicked or (F8) is pressed. Right clicking on the program in the bar and choosing “Close window” will also not close the window. When trying to end the program in the Task manager the option to “End Process” is available but nothing happens when it is chosen. It just sit in RAM unchanged. To be clear AGM continues to run fine and I am able to edit and save and even run the game again (it opens in a new window in addition to the game instance that will not close) I have tested and the additional game windows will also sometime stick and refuse to close. I have let them stack up to three times just to see if it would and it did. The issue is the RAM the stuck windows take up. The only thing to do to clear them is to restart the computer entirely.