Sequencer Render Preview frozen, music looping & output Video Frozen

Hi guys, Im having a major issue I just don’t understand.
Basically i have created a video sequence using the level sequencer and when i want to render to video sequence with the settings below

the resulting render preview looks like so

in the end the video output in avi format is frozen on one scene and the colors look very off.

Ended up using the Camera cuts, rather than shots, worked fine