I've used build 1434 before, where I could drag and drop archived songs compilation in the playlist and the songs were listed just fine and I could play them without problems.
Problem were only if the archive contained a playlist file or txt file, the player would respond with an error message. That wasn't bothering me at all, removing the loaded playlist and/or txt file before starting the playback would do the trick.
But using builds 1434-1438 (after system re-installation) is where problem started to occur. Drag and drop on the playlist doesn't work quite the same way anymore. (Talking about archived files playback no matter the compression the whole time)
By doing DnD (drag n' drop) on playlist, in these newer builds, it does't load tracks any more, it loads just a playlist (which is unplayable - mentioned in the beginning), and the archives that doesn't contain the playlist are loaded as archives where playback is possible but you only see one archived file with the summed compilation time.
Is it possible to have the tracks list back again when loading archived files? I tried to explain as more detailed as I could. Than you in advance for any support that follows.