No night time field music in all ARR areas

[Erendis]

Date & Time: Noticed it on 2020 12 30.
Frequency: During night time in game, every night.
World name: Moogle
Character name: E'renndis Harper, Akyhra Marshal and more.
In-game time: During night
Area and coordinates: All ARR maps
Steps:
1. Enter ARR area.
2. Leave settlement.
3. There's no field music.

Day time music works correctly. Battle music in fields at night works correctly, however once batlle ends there's silence. People in Novice Network helped me to confirm that this bug is both on PC and PS4.