Take a look at the alpha channel in AE, is it correct or solid white. I follow the same process, using the stock “lossless” setting in AE without difficulty every day.
I run AJA IOLA to an 1800 (Beta). I’ve NEVER had an accurate insert edit. Makes that tiny fix you notice as the show is rolling off a real pain. I’d love a way out.
Fresh install of 5 with Tiger. The Viewer window is a mess. 20% of the time clips don’t show up. Sometimes I see them through the Aja and not in the viewer. Playing the viewer and setting in and out points causes horrible stutters in playback. Only crashed once, though. Motion crashes often.