Metro 2033 Redux WeMod Bug

The WeMod Trainer stops working in Metro 2033 Redux right at the Polis station where I to go to the library and find the location of the missile control center.
I run out of air and die every time.
Is anybody experiencing this?

What quits working ?
I played this like 2 months ago and had no problems with it
You have to steam version ?
Probably dont work to good with you gog version