Flying about 25 mins without RAD NAV coverage towards Baku, first visit ever, night IMC at 4 a.m. body clock. A bit later than expected update came alive and all looked nicely throughout the RNAV arrival.
Attempting to join the ILS nothing matched well, especially DME and GP. Turns out the map shift was almost 3 miles (closer to the field). Seems the radio introduced the error, probably based on scalloping single-source Baku VOR or Yerevan across the mountain range.