Due to the threading in the music player it will accept play controls even when played as background music to a slideshow. When slideshow includes videos the slide show will hang if video is first in slideshow.

h4. Steps to Reproduce
Create folder picture with folder.m3u music playlist or start to play music from MyMusic.
Start slideshow
While fade-in of music press play controls (pause/left/right/f7/f8 etc)
--> Music is controlled instead of slideshow

Add video file to picture folder, make sure it is the first entry in the list
Start slideshow (without random)
--> MP will freeze (not always as this a timing issue, might need to try a few times)

h4. Additional Information
Hang can happen also from playing Video to Music in MyMusic (mp4 (audio) to mp4 (Video/Audio)

Don't send duplicate ACTION_NEXT_ITEM or ACTION_PREV_ITEM (will no freeze GUI) when it's video avoid the hang.