Notification Bar Disappearing

[snake0101]

I have a small issue that's increasingly annoyed me over the past weeks. Hopefully someone here knows the answer: I am on the xiaomi eu rom, everything has been perfect, except that when the phone is awake and not been touched for 5 seconds, the notification bar slides up and disappears. In this state, the capacitive buttons do not work, and the touches on the screen have no effect until the notification bar is back (which the first touch on the screen triggers).

I thought this might be a settings thing, and have played around with all the options but couldn't find an answer. Does anyone know how to make this stop?

Thanks for your help.