He's back!
I have rendered the video a few times. Each time finding something to tweak. Move a title, zoom on something else. They worked. Video played fine and completely after those renderings.
Now suddenly after a bit more editing, I'd guesstimate that the last two or three seconds are clipped off. The video ends with a collage of five selected images. No problem in earlier renderings. The video appears to plays fine in the program. Running to the end of my video. But after rendering, there's some missing seconds - cutting off the last collage image
I just looked and I don't see anything to clip or constrain the ending. I even just added another photo after the collage. Still clipping at the same point - cutting off the last image in the collage. So, obviously something now terminates the video before its natural conclusion as shown in the program itself.
Ideas or suggestion on what to look for?