Baldy, several inmates have PM'd about trouble with smugmug video embeds now autoplaying. Was a sitewide setting changed at Smug or is a problem with the way individual users have things set?
Trying to manually manipulate the embed code doesn't seem to work.
Thanks,
MOD EDIT:
Okay, here's the problem:
I was clicking on the video and watching it in SmugMug. Then, when the movie was over, I would snag the embed code from the share button on the movie. This will get you a movie that autoplays.
The way to get a movie that does not autoplay is to:
Click the thumbnail of the movie you are interested in posting so that it's selected but isn't running.
Then click on the "share" button at the upper right of the screen.

Select the "Get a Link" menu item.
Click the "Embedable Link" tab.

Then click the copy button in "Video Embed" next to the video size you want.
Then just paste the code into your post.
This will get you a video that does not autoplay.