Garbled Video Screen
I was just starting editing already (deleting parts of an emf file) when the screen became garbled.
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Request to Contact Support · Ashutosh Chaturvedi responded
Please get in touch with us at any of the other support channels – https://helpx.adobe.com/support.html . Since this is not a generic issue that we can reproduce at our end, we will need someone to look into your machine to figure out what is going on here.