I make changes to the markup of a master page (HTML version of course), convert it - successfully, can verify that the true .MASTER page has also been changed).
However, when I then render any page that uses this master page, I see that the changes are NOT reflected (e.g. the markup changes I made are missing).
I've tried several different tactics, including iisreset. Nothing works reliably.
What do I need to do to get this to work?