I got a Z9X Pro last year, and for the price I paid, it's quite good. I like it. However, one thing really frustrates me—I can't stand it. My library consists exclusively of .mkv files for movies and series. I always include the original release language, English, and my native language as audio tracks. My settings are configured to follow the default flags, all of which are 100% correctly set. Yet, HT 4.0 (I'm still on version 1.86, as 1.95 is too buggy for me) simply refuses to consistently adhere to these settings. I finally got subtitles working, so forced subtitles now display correctly. However, for some reason, I still can't get the Zidoo player to reliably select the correct default-flagged audio track 100% of the time. Sometimes it works, and sometimes it doesn’t—without any apparent reason why it shouldn't work in all cases. So please, for the love of God, can we get a fully functional HT that properly follows default flags? I beg you!