Help! Keynote video export colors are off

Guys. I am lost! And frustrated. I have this slideshow of images that cycle through which I laid out on a slide in Keynote. When I export that slide as a movie, I get weird colors darker colors than the ones in the images. I've tried all export color modes (H.264, ProRes etc) and nothing works.

Not sure if this is related, but it all started when I was working on a AE video project and I was using a video for that project that was exported out of keynote as a .mov. The color was slightly off, so I went back to keynote and updated the color, and exported a new movie for my AE project. A few mins later I got an alert in AE saying that that particular file is damaged and cannot be used. I tried to export another movie of the same thing from keynote and since then all colors are off. Darker. Not lighter, just darker.

Any ideas?!