I don't know what I hit but I lost video preview in trimmer. The audio waveform is larger then usual. Video is a still frame and audio plays. If I right click the trimmer. "Show video preview is greyed out" I think that is the wording I am not in front of my computer. Happens with any prior no problem source video. Sure it,s a dumb one on my part just can't find it.
Thanks in advance!