@Don-Nagy

Hi,

Without knowing anything about the clips or your hardware, you can try going into the Program Settings, Device Options tab, and under Hardware acceleration, change Processing to something else.

Post a screen shot of the parameters when you open the dropdown,

Then tell us your hardware details and OS (see my signature for and example. Do not include id's.

Then tell us the nature of the video clips - source type. You can get the details using MediaInfo. See this tutorial.

John CB