I have Vim set up to use Emmet, and I've set the key to trigger it. Just a pre-requisite, I also have Ultisnips installed.
When I open a HTML or even a .blade.php file to edit from first opening Vim, and insert (as an example) ".test" and hit it does nothing. However, if I open my .vimrc file, write it and close it, then go back and do the same thing in the HTML / blade.php file.... it works!
No idea why, but if anyone else has encountered this or has a set up where they can utilise Emmet without issue I'd be really interested in your help.