So I spent all of last night trying to export a video properly. I used various combinations of resolutions and framerates. I tried tampering with settings. I did all sorts of things, but still, when I exported, half of my pan and zoom effects didn't work. I tried changing the effect to motion with keyframes, but lo and behold, that failed as well. Whenever I try to export, the photos I want to pan and zoom on show up for a few seconds, then the screen goes black. What is going on?