There is no update from you for a period, assuming this is not an issue anymore. Hence we are closing this topic. If need further support, please open a new one. Thanks
OK. Could you open more log by GST_DEBUG=1,*v4l2*:5 gst-launch-1.0 -v ... and attach the log info? Also could you try to add capsfilter between nvvideoconvert ! nvv4l2h265enc to set the fomat to NV12?