Since the last time I upgraded the iOS on my older iPod Touch, the playback controls will lock up unpredictably on my X940BT... and when it happens, the only ways to stop playback or get it to be able to skip between tracks is to either change the source on the head unit, or unplug the iPod. After that, it usually happens again within one or two songs anyway, so I just have to listen to the radio for a while. Awesome.
As it's happening, the areas where title, artist, and album art appear are completely blank. The playback bar is blank, also, IIRC. Anyone else having this issue?