Problem with rotated views

[jogo]

I have a camera with a (left) rotated view. When I check the stored videos the thumbnails show the correct orientation. When I then play the video sequence the html frame, or background shows the correct orientation, but the video is rotated again, i.e. the sequence is shown with a 180° rotation.

Zoneminder v1.36.31, but I think I've seen this for the last few versions, but definitively not about a year ago.

[iconnor]

How are you storing the video? passthrough, encoding or jpegs?

[jogo]

Source Type: Ffmpeg
Orientation: Rotate Left
Save JPEGs: Frames + Analysis images
Video Writer: Camera Passthrough