I wont renew or register another address, and I will see if I get into troubles at the airport
If it happens, I will say I didnt know I had to renew my address.
I know it is not really legal, I want to be legal, but the ukrainian system make it so hard.
But when I find my new apartment, hopefully my landlord will be nice and accept to register me.
Border Control won't look at or question where you're registered. They HAVE asked me where I live and I confirm that I live in Kramatorsk, but that's the extent of it. They've never asked for the address.
You need to be registered to get your PRP, not to cross the border.