Square Enix released a patch today for the PlayStation 4 version of Final Fantasy X | X-2 HD Remaster.
The follow issues are addressed:
The “Random Number Generation” which ensures that monster encounters and the abilities they use happen randomly has been corrected.
The issue where the music would restart from the beginning after a random encounter has been corrected, so now you can hear the beautiful pieces of music that make up this soundtrack all the way through.
To install the patch, simply launch the game and the patch will be downloaded.