SOLVED: Playing .webm on Google TV (Sony)

[Kotor1984]

I was using the Jellyfin app on my Sony TV running Google Android. When playing movie with webm file extension, Jellyfin app cannot play it, always error.

Is this not supported on Google TV? The TV model is Sony X95L (2023).

If I use Jellyfin app on my Android phone, and stream it to TV via Chromecast, it works.

So, I am wondering if there's any way to fix this issue.