[SOLVED] Added frames not rendering

Hi people,

I’m very new to blender so bare with my noob question.
I downloaded a youtube intro template and alterd it a bit to my own taste.
The animation was 300 frames and i thought it wasn’t long enough so i added a 100 frames of animation
in the timeline so now its 400. Hoever when i render the movie the animation after frame 300 isn’t played, the movie just ends. Then i saw the video sequence editor and stretched the scene to 400 frames. Now the rendered video is indeed longer but the animation i added at the end is just a black screen.
I don’t know whats going on at all, it’s been frustrating me for 2 days now.
Prolly something very easy to solve but i just can’t get it, please look at the screenshot for extra info

greets,

Cheesybeesy


Ok wtf, i was messing around with the trim duration and suddenly the grey part turns green, now it’s working. From what i can tell changing the trim duration updated the greyed out part with the animation and turned green. All good now.