I have noticed recently that if I watch a youtube video on the iphone app after importing, the listening time will not be tracked. If I listen to the imported audio only on the iphone app, the listening time will be tracked. Watching the video through lingq on the pc, tracks listening time, however. I would use my phone way more if it worked correctly.
I’ve never seen the video watching update the stats in any version of LingQ. Definitely a missing element if you ask me, but I usually watch youtube videos outside the app and add the missing listening status to lingq manually.