had the issue this morning. Tried installing beta over 7.01407 and got an error. Tried uninstalling 7.01407 and got an error. Rebooted in safe mode, ran the uninstaller. Rebooted and installed 7.01412 no problem. Now I can do manual updates again.
Hopefully this will not become a trend where we need to upgrade version every time there is a problem with manual updates.