Broken updates or installs with recent Oreo updates
This is important:
We found a problem with recent Android Oreo updates: The system allowed RetroX to install one or two emulators then stopped installing anything else. The behaviour that you can see is that RetroX will prepare to install an emulator and then it does nothing, or sometimes the install window is seen on the screen then killed by Android.
The fix is already published as “Silent Oreo”, but because of this same problem, RetroX can’t install the update. If that happens to you, just download and install RetroX again. Don’t uninstall, just install over so it updates the current installation.
Please share this info as much as possible.