Hello friends. I have iMac mid 2011, El Capitan version 10.11.3 and iMovie version 10.1.1. Recently (probably after last update of iMovie) I have problems importing files from my video camera, Sony Handicam, HDR-Cx6. After importing process, imported video is not there, but on the screen is remark: Missing camera. Please I need some good advice. Best regards, Vilhelmut.