Had problems with QGO so I uninstalled it per instructions and restarted the Quest. When it was done restarting I tried to find the Unknown Sources to reinstall QGO but it's gone. I disabled/enabled Developer mode multiple times, restarted the Quest multiple times but nothing is working. I reuploaded the APK from Sidequest multiple times as well. Yes, I know Unknown Sources is not in the same place as it used to be but it is not in the Applications dropdown either. It's just gone.....Currently running v.71 of the Quest software.