On a device that is running Windows 8.1 Preview, a Flash video sometimes quickly lightens and darkens during playback. This causes a flickering effect.Note
This issue occurs when Adobe Flash Player version 11.8.800.94 is installed.
Windows 8.1 Preview supports additional color space management features. Because of an incompatibility between Windows 8.1 Preview and Adobe Flash Player, the color correction setting for videos is sometimes incorrectly set during playback.
To resolve this issue, install update 2871676 from Windows Update
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