I'm still experiencing this, and I thought this might be kind of related to a little imperfection I've found:
Assuming to be using tabs to indent the code, and given the HTML in the previous post of this thread, if I place the caret just after and I press Enter, a new line is added but it's not automatically indented (to match the indentation of other children of the element), and the caret is placed at the beginning of the line.
This generally happens when the element you're in is not completely empty. Could this please be fixed? It's not a big change, and Sublime Text is already great as it is, but by setting the auto indent option to true this behaviour is expected, plus I'm used to it coming from TextMate