check the Docker volume settings and ensure that the volume for mounting the folder containing your videos is correctly configured. Verify that the paths match the location of your video files.
Next, ensure that the Docker container has the necessary permissions to access the video files. Check the file ownership and permissions for the shared folder containing the videos.
Try restarting the Docker container running Photoprism as well. Sometimes, a restart can resolve mounting or file-related issues.
That’s about all I can offer without looking in closer detail at your configs.