The source monitor, program monitor breaks like an image attached.
all project. new project. old project new sequence all breaks.
After Effect crash too.
but exprot media or each clips are normal.
It is normal to run each clip with a program such as a Windows Media Player.
It was good until yesterday.
Perhaps the problem occurred after this morning's Windows update.
Please help me Thanks.
That looks like a graphics driver issue ... which can come from an OS update. Have you gone to the manufacturer's site to see if they have a newer driver for your GPU than what you've got installed?
I agree with Neil, I have seen similar issues before. Check if you have any update available for the display drivers.
As a workaround, try these steps: open your project, choose File > Project settings > General & select MPE Software Only mode under the video renderer.
thanks Neil, thanks Kulpreet Singh!!! I solved problem.