I’ve been using AE and FCP for years and i’ve tried a number of different settings all with the same results. Skipping frames once it’s exported from FCP. I’ve never had this problem before, and in fact, if I do the exact same settings in AE7 vs AECS3, the AE7 render behaves fine upon export from the FCP timeline, while the AECS3 render plays back at what appears to frame double. I am not the only person who’s come across this issue, it was a major blunder on a recent project that I’m not at liberty to disclose, but the issue was found on all 8 machines that were creating elements that were later used in FCP.