I'm trying to edit 4k video in FCP but I'm running into a number of problems. Sadly, I'm sure, a lot of it stems from my lack of knowledge and inexperience as I'm very new to this, any help would be hugely appreciated. The video is from a 'Wolf Action 4K UltraHD' camera. Here are the file details (taken from VLC): Codec: H264 - MPEG-4 AVC (part10) (avc1) Resolution: 3840x2178 Display Resolution: 3840x2160 Frame Rate: 30 Decoded Format: Planar 4:2:0 YUV Audio Codec: MPEG AAC Audio (mp4a) Sample Rate: 16000 Hz So the problem I'm experiencing; the video plays perfectly in VLC and Quicktime but when I import the video directly into FCP it firstly appears as if through a red filter and also flickers (at first I thought the flickering was because the video is taken from inside an aeroplane cockpit and was from the propeller but it doesn't flicker in VLC or Quicktime). If I then change the 'Colour Space Override' to any of the options except 'off' this fixes the red issue but the flickering still persists. Through experimentation I've found that if I transcode the video in FCP to 'Apple ProRes' the flickering stops BUT the red issue returns and I have to change 'Colour Space Override' to 'rec. 601 (NTSC) to get the correct colour but by doing this the flickering returns. Also if I try to then share to a Master File I get a 'failed error message'. I've tried transcoding in Compressor but it just hangs on 'processing' and doesn't do anything. This is driving me crazy now, I can't understand why the video plays faultlessly in VLC and Quicktime yet I'm having so much trouble in FCPX and Compressor. If it helps my system is: 15" MacBook Pro (Touchbar), 2.6 GHz Intel Core i7, 16GB RAM, Radeon Pro 460 GPU. Any help at all would be really appreciated, thanks!!