Also as per the second screenshot, in every video, it complains that the language track is not in sync with the source language. That’s expected. But every new video, the audio track + the subtitles become English too.
I’ve had the same problem for quite a while now but with German. Each time a new episode loads the audio track goes back to the original (I watch things dubbed) and the subtitles are in English. I’ve made sure the ‘force original track’ is off and that the correct language settings are selected but nothing works. I’ve ended up having to uninstall the addon because even with it switched off using the button on the playback bar, it still resets the language. This essentially means I can’t use it for 99% of what I watch on Netflix so I’ve had to stop using the extension which I’m quite sad about. I’ve reinstalled but no change.