I have created a number of .mov files over the years. QuickTime 10.4 is not playing some of them today. This appears to have started after the last Mac OS X 10.11.5 update.
File that indicate the H.264, AAC do play correctly. Files in the format of MPEG-4 Video, MPEG-4 AAC Low Delay do load but do not display the video. Audio is heard. Controls indicate a proper run time.
Is there a control I can adjust or a conversion that needs to be performed?
