All videos are Washed out within iPhoto Library. VERY SERIOUS ISSUE
iPhoto despite showing properly in terms of colours the thumbnails of whatever video, once opened the same immediately turn into totally washed out colours.
I have done some test and gone to iCloud to see the same videos and those are shown properly there. After trying the various download options "Unmodified originals" mode again is showing washed out colours. Same story when I use "highest resolution" mode. The only way to see the proper colours but I suppose losing some quality is the "most compatible" mode. In any case the entire library is a total **** and there's no a command to turn the same with the proper colours.
iMac 27″, macOS 10.13