Permanent glitch

[Rowlie]

I play Metro: Last Light on a PS3 and I got to the level where I have to fight a Rhino Nosalis. However, I can't, the boss just stands there and does nothing. I read on the internet that it's a rare glitch and, if you restart the system, it should disappear. It doesn't, I restarted the system several time, the boss refuses to fight and I can't complete the level. Any ideas what should I do? Thank you.

[Komodo Saurian]

You could try restarting the level from the chapter selection tab in the main menu.