Hi all. Long story short, (I have tested everything, making sure I even had shot in 4k) uploading to youtube caps out at 1080p for my options. Saving to camera roll caps out at 1080p. This is in iMovie. I didn't use any effects or filters. I double-tested it with a single, unedited 4k video snippet I put into iMovie on my S Plus and then tried to save and/or export. 1080p capped. I've seen others send me screenshots of their 4k upload to Youtube (and save to camera roll) options. What the crap? Backing up my iMovie projects now and deleting/re-installing iMovie on my S Plus. Anyone else had any hardship there?