Hi, org-src-fontify-natively is not working for me. My emacs-version: 24.4.50.1 (on ubuntu). My org-version 8.4beta (tried with git and org-track, verified by M-x org-version). Starting with emacs -Q. Now, whether I load the current git-version or not, after turning on org-src-fontify-natively, there is no highlighting in my emacs-lisp code-blocks or any other kind of code block. When on the default org (8.26), I sometimes see 'org-mode fontification error' (the debugger, however, does not kick in) in the messages buffer. In the git-version I see nothing. Is this a problem with emacs? How could I find out? I am sorry if this is the wrong place to ask. I have no other problems with emacs. Thank you for any advice, Mathäus.