You might have accidentally changed the gray bar at the top of your timeline graphical display. You can drag
this out to the full length of your master comp timeline by holding shift while dragging to snap to
important points like keyframes in your time line. It is a thick gray bar, not the thin gray bar that controls how much of the timeline you see in the viewport. The thick gray bar displays the length of your Rendering Project.
Thanks you, I tried it and it rendered.
I'm glad it worked for you John. My text explanation was not as good as a photo screenshot would have been but I'm glad you could understand my communication. Great! (And that my suggestion was what was actually wrong with the project, and not something more critical such as software failure)
Message was edited by: markerline