OnyxShowLogic could not be found

Installing 4.10.1273 over top of a 4.4.1186.0 installation on Windows 10 (64bit).
After a few minutes, this error prompt came up “OnyxShowLogic could not be found”, and then the installation stopped. Now when I try to install again, the error comes up right away. Can’t find a single peep of this error anywhere else on the interwebs. Someone please show me how dumb I am, and that it’s super simple to fix. Thanks!

Hello, please locate the installer log files (msi*.log files in %TEMP% that have ONYX.msi in their contents) and send the most recent one to support@obsidiancontrol.com