[Plugin: ProPlayer] [Plugin: Proplayer] vimeo error "Video not found or access denied"??

I just put in Proplayer and was getting the same error. I figured it out for me. You wouldn’t happen to be trying to center the video using the WYSIWYG would you? If you are then that’s the problem, PP seems to be really sensitive to bad code. My fix was to jump into the HTML view and just use the <center></center> tags around the video. Not only did it play but it centered properly. Hope this helps, now if i can only figure out how to get my watermark to show up ill have it.