imovie - change the change
I mistakenly changed a video clip to a still/photograph and want to change the clip back to video. Since I couldn't figure out how to do this, I deleted the clips with this problem and tried to again drag the videos from Photos to Imovie. Now, regardless of what clips I try to drag, all become stills with the camera icon in the top left corner of the clip. I can't click on the camera icon to open it, and don't know what commands can get me back to my original video version.
iMac 21.5″, macOS 10.14