No syntax highlighting after Vim session restore in Terminal

Question

I'm using this Vim configuration. I save and restore Vim sessions using these 2 commands:

 :mksession! ~/.vim_session
 :source ~/.vim_session                                                                                                                                   

There's no syntax highlighting after I restore a session. How can I fix this?

My Vim version:

VIM - Vi IMproved 7.3.462 (2010 Aug 15, compiled Mar 26 2012 21:45:48)
MacOS X (unix) version
Included patches: 1-462

Answer 1

There is a note at the end of the "Views and Sessions" chapter of the documentation (see the last paragraph of this section). In particular, :syntax on is not restored by the session file.

Does it work if you enter :syntax on manually after loading the session?