Thanks to Djracem on Reddit for contributing to this page.
AMD adrenalin drivers 22.5.2, and later, are causing Flash to only display a colored background associated with the background of Flash Player. To not roll back pre-22.5.2, disable "Hardware Accel" on Macromed\Flash and on mms.cfg. Run, and make sure Command Prompt is ran as administrator, and then copy the Batchfile code below.
mkdir "%WINDIR% \SysWoW64\Macromed\Flash"
NUL & echo DisableHardwareAcceleration "WINDIR% \SysWoW64\Macromed\Flash\mms.cfg"