Thanks for the response! In the video around the time he seems to wrap up the rig retarget portion, he does indeed make some edits to the pose of the ue4 mannequin to make it adjust. Here is what I have
Although it seems to me that it doesn’t really make an impact on the result of the animation previews, as I have spent some time even just destroying this pose in order to test out if that was the case. Perhaps I’m missing something still though, since the changes I’ve made do not seem to have any impact.