.htaccess is allowed and writable but minify url rewriting is failing. Not sure if this is an actual bug or misconfiguration.
I'm on shared hosting. I hadn't been using minification before because it always broke my JS. I finally took the time to manually include most of the js scripts for minification/combining, and got my site functional, but of course, since they're included with the query string, each file adds an extra couple seconds to my site's load time.
I just updated to the latest release of WP.
I can troubleshoot code if you point me in the right direction.