Well, I seem to have fixed this.

I cleared all of the artwork files out of the various MM Temp folders on the PC.

Re-synced and all is good, and 8 correct artwork files are in the C:\Users\andy\AppData\Local\Temp\MM_UPNP_Images folder.

So, I cleared out the artworks folder, re-synced and the problem appears to be the files created in the artworks folder. I have 8 file for the 8 tracks, only 2 of these 8 are the correct artwork for the files. https://goo.gl/photos/pxqmeWGjYCdkzjj79 Over to you guys to work this one out! The path th...

Well that didn't work either!

I no longer have a separate jpeg in the folder, the tagged files show the correct artwork in a file browser, MMA still displays the previously incorrect artwork.

Looks like I may have found the problem, and it looks more like a MMW issue than a MMA issue - the files are syncing correctly BUT the albumart.jpg file created in the folder is incorrect.

I'll do a resync now with the copying art to folder disabled.

https://goo.gl/photos/cu5kgfQ13gMSoM977

OK, this may help explain and also keep it simple I am now only wirelessly syncing 1 manually creates playlist of 8 songs, rather than the full library Screenshots of those songs on MMW, and on the HTC One M8 in Google Play Music, HTC Music App and MMA. The only place where the artwork is incorrect ...

I'll share an image from MMW and Google Play Music - basically MMA is displaying incorrect artwork for the tracks, yet the files seem to have synced OK as other audio apps on Android display the correct artwork.

... or maybe not, synced 100 songs to the Hudl and the artwork is all over the place.

Displays perfectly in Google Play Music

https://onedrive.live.com/redir?resid=6 ... hoto%2cpng

It appears all artwork is transposed by one album

https://goo.gl/photos/7EDi4W5hrt2RgZY46

Also tried with rooted Tesco Hudl HT7S3 Android 4.2.2 freshly reinstalled and it is the same. It also appears that it is out of sync exactly the same - i.e exactly the same 'wrong' artwork is assigned.

MMA Build 1.2.0.0601 HTC One M8 Android 6.0 Syncing to MMW 4.1.12.1798 on Windows 10 All artwork in MMW is fine, artwork after sync to MMA (wireless or USB) is mixed up - wrong artwork with albums Looking at the files using Google Play Music or HTC Music App and all artwork appears correct, so it ap...