Screen Tearing while H.265 video decoding

My app plays a H.265 spherical video.
However, there were many tearing noise on the screen.
 
Tearing did not appear in a screen recoding video
and tearing was also happened in case that rendering a still image as the video decoder working.
However, if the video decoder was stopped, tearing was not happened .
 
I would appreciate it if you would give me some advice.
 
Other info:
- Meta Quest 2
- Unity App ( Unity 2021.3.22f1 )
- Stand alone ( Not use Quest Link and Air Link )
- Using android.media.MediaCodec as the Video Decoder