Hi,
Since MSDN WPF forum will be read only from 3/30/2020, we have created a new thread on Microsoft Q&A
WPF Media Element - Weird Colors, please follow this thread for further discussion about your question.
Best Regards,
Charles
MSDN Community Support
Please remember to click "Mark as Answer" the responses that resolved your issue, and to click "Unmark as Answer" if not. This can be beneficial to other community members reading this thread. If you have any compliments or complaints to
MSDN Support, feel free to contact MSDNFSF@microsoft.com.