Since the latest upgrade of Mezzmo, I cannot get a video thumbnail selecting "Get artwork from video". I get error message "Artwork could not be generated from the video at the selected time". In fact you cannot get or see any video to do this at anytime. In the past this also seemed to do this automatically once a new video was loaded. I have tried to find a setting that has changed, etc. but cannot find anything. It should be noted that running database management does not affect this either. I can retrieve and change artwork through Metadata retrieval, but many self created or home movies, have no metadata.....