Exported movie comes out with time glitches
When I'm exporting my project to a Movie through Adobe Media Ecoder it comes out with time glitches. For example one figure is recieving a paper from another and in the exported move the arm is, for only one frame or so, jumping back and then the Movie continues. I've tried to find the problem in the project itself but i can't find any and I've also copied just that part from my project with the two figures into a new and exported and then everything seemes fine. The move I'm making is not heavy or long but i seemes like the longer the time the more problem occurs. I also experienced previously when I've added voiceover into a project that in the exported movie the voiceover and the animations fall out of sync. Why is that, is this maybe part of the same problem?
Is there anyone hwo experienced this or could help me? Greatful for all help I could get .)
