From the official fix list
Pearl Abyss lists the following fixes among this patch’s changes:
- Fixed an issue where progress toward the "Desperate Rescue" challenge was not counted correctly.
- Fixed an issue where an unintended item was assigned to the quick slot after all of the assigned food had been consumed.
- Fixed an issue where the unique effects of special headgear did not activate properly in specific situations.
- Fixed an issue where footstep sounds could overlap or animations could stutter while the player was moving.
- Fixed an issue where icons of unobtainable treasure chests appeared on the map.
- Fixed an issue where trade routes appeared on the map in an abnormal way.
This rundown covers listed fixes. Read the official notes for the complete change list and platform rollout details. A listed fix does not establish that a player’s issue is resolved.