domestic dingo

Ok, thank you.

(I'm not entirely sure if someone has already asked this, I apologize if they have) So, when I play on survival mode I am unable to save my progress. I've looked at the key bindings numerous times to make sure that I didn't mess anything up, and I haven't to my knowledge. Pressing F5 doesn't save my progress. I've had to resort to just keeping the game open at all times so that I don't lose my progress. What am I doing wrong? (I've been playing the Long Dark for a few months and this issue just started)