When I activate the Trainer my Oxygen stops depleting.
Have you used the INF O2 option, if so it might have been locked on in a save.
When I activate the Trainer my Oxygen stops depleting.
Have you used the INF O2 option, if so it might have been locked on in a save.
Nope.
Do you have your STEAM BETA OPT IN set to experimental or using stable releases?
STABLE