I'm admittedly new to After Effects, so please bear with me on this one. I've been working on an After Effects file to be inserted into Adobe Captivate as an animation layer. When I render the file as a .avi or .mp4, everything renders exactly as it should. However, when I try to export as a .swf file (which is what I need for the animation layer in Captivate), the file says its rendering 450 frames but then cuts out around 380. Again, when rendering it in the other formats, I have no problems with the render. I just run into a problem when I'm trying to export as a .swf file. I've checked the duration and everything says it should be exporting completely, so I'm completely at a loss on this one.
I'd recomend that you use Adobe Media Encoder to create the FLV file and let Flash turn that into a linked file in a SWF. It will play faster and be smaller overall unless your SWF is entirely vector art.