In internet explorer 11, running the latest version of flash, Facebook videos will load and play, but the video is replaced with a blank white box. I can hear sound, and when the bottom bar is visible the bottom portion of the video is visible in the background. The flash player settings do come up on the object when right clicking and selecting 'Settings.' While the settings dialogue is up, the video is again visible in the background, faded.
I confirmed that videos play correctly in Google Chrome, but the computer's main user dislikes using other browsers. As far as I could conclude, videos on other sites play correctly.
I searched for solutions to this issue, but I have yet to find it described anywhere near the same, nor has any general solution or quick-fix worked yet.
Things I have tried:
Resetting IE settings
Resetting IE advanced settings
Resetting IE advanced settings and personal data
Disabling Hardware Acceleration
Uninstalling & Reinstalling video drivers
Uninstalling & Reinstalling IE11
Uninstalling & Reinstalling Java
Uninstalling & Reinstalling Flash
Installing Shockwave player seperately
Uninstalling IE11, Java, and Flash, rebooting and cleaning up unused system files and registry errors, then reinstalling everything
None of these seem to have any effect.