Brilliant !
I did scratched IPA both from Itunes & Iphone.
Restored it from Time Machine, dragged it into Itunes.
Checked the app in Itunes to be reinstalled on Iphone.
Synced ... And the art is back.
I also turned off the automatic App update on Iphone settings.
I have some difficulties to figure out how with Apple's technical power,
they don't test their releases deeper than that !...
.../...
They also changed some features in last Itunes release :
If you try to access to a radio information in a playlist, you cannot update the album name,
wich was useful to group several radios under a single album instead of having as many
albums as radios in your playlists showing up when you choose the Itunes presentation by albums.
The funny thing is that with the glitch on Remote last release,
instead of showing the two black notes on the Remote current playing screen,
they show the name of the album of the radio (for those I did update before last Itunes release of course.)
Well !
Thanks again,
Let's wait for Apple Remote bug correction.
Regards,
Jean.