jetpack 4.3 fails to read video

hello everyone ,i have a problem when i finish jatpack4.3 in Xavier,and run a demo about read a video,but command interface prompt that make sure install NVENC in your PC. when i use old version like jatpack4.2.1\jatpack4.2.2\jatpack4.2.3 don’t have this problem.

Please not duplicate issues. Let’s check in