I had a similar problem. A helpful guy in the chat recommended me to do a clean install of TM2, then fire up TM1 and set the preferences of the Latex Bundle in TM1. Now you should be able to use Latex in TM2.
I get the same result. Curiously, LaTeX was working until I deleted
TextMate 1.5. Could TM2 have been using the bundle from 1.5?
cf
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