I can’t remember anymore. It was way too complicated method so I just reverted back to 5.4. It seems Epic changed something so head movement is no longer supported directly from iphone footage, you will have to change rig. Here is a simpler way of doing it . https://www.youtube.com/watch?v=hypQJRLwYFo&lc=UgwGtkUYPspijFa59KZ4AaABAg.AFhYPNvqdXGAFjGPaXMiFZ