While I never rule out user error, I stripped this down to the bare bones in order to mitigate that danger as much as possible. :)
Here's my Inky:
--- subject: My Email Subject --- <container> <row class="collapse"> <columns small="12" large="12"> <button class="large expanded" href="http://google.com">WATCH NOW</button> </columns> </row> </container>
And here's what Litmus tells me it looks like in Outhouse 2013:
Is this something I'm doing wrong?