H264 portrait video will not play

Any idea why this h264 video will not play on info-beamer with a pi 4?

Using the HD image / Video player, and the video shows up OK with thumbnail in assets.

Works if I encode it to 1080x1080, but not 1080 x 1920.

Will be solved in the next stable release (it was a firmware issue in the release used in the current stable version). Have a look at Problems with videos on Pi4.

Thanks, made my day! Please advise estimated release date for the stable release.

Soonish. It’s mostly ready. If you install testing right now, you can easily switch back to stable once it’s out.