Save Changes?

[modernrocketry]

I have a nightly build and over the weekend my build only ran on Saturday night, not Sunday night.

When I check the build PC, my build is open and asking "Do you want to save changes? YES, NO"
It looks like this is from Saturday night and this caused Sundays build not to start because the Saturday build was still running.

I am at a loss on why this is happening or how to stop it -- any suggestions would be greatly appreciated.