I'm using the exact same USB drive I had before but the newest firmware fully changed the music aspect and I'm having problems left and right. With all these adjustments you made, when you go to the very root of the drive and click "folder" at the bottom of the music list, does it go to a list of folders for you (and then any song not in a folder laid out under them)? It used to for me but now when I go to "folder", it simply lists every single song alphabetically on the drive without any sorting by folders anymore. So whereas a "Beatles" folder used to be near the very top of my list and I could click that and see all the separate albums in subfolders, now every single Beatles song is in alphabetical order regardless of album or layout. And they are among every other band/song on the drive that were in different folders. I had a "soundtrack" folder with many different film scores in it and now they are all spread out alphabetically with hundreds of other songs on the drive.
I used FAT sorter to go through again and put it on the drive in the display order but that didn't change it. Even when I make playlists, it doesn't work well. I went into FAT Sorter and highlighted every single soundtrack song and made sure each was labeled as the genre "soundtrack" but when I go to the infotainment "genre" listing, it only lists about 40 of the songs from that huge folder of hundreds of songs. And I exported a "soundtrack" playlist with all those songs on it and it doesn't even show up in the "playlist" file though some of the other playlists I made DO appear there. It's so inconsistent.
There are lots of other random things too. The music takes about 5 times as long to start up than before so I'm halfway down the street before the music resumes. I like to use "random" and it does continue the song I was playing previously when on random however now after THAT song finishes, it reverts back to the first song on the drive. Random doesn't work well and appears to go in an order similar to song 1, song 68, song 3, song 67, song 2, song 70, etc... They all all very close so if I have 7 or 8 songs by a band in a huge folder of artists, I might "randomly" hear that same band every other song or so.
Anyway, I'd be happy just to have my folders and structure back when I go to the root and "folder", I'm hoping some of those fixes you talk about help that aspect. Thoughts? Thanks guys!