According to FR24, the Wamos aircraft was changed from EC-NUI to EC-NCK on 8 July.

These aircraft have a slightly different seat layout in J, although they are both 1-2-1. EC-NCK has the odd-numbered rows with seats closest to the window, whereas on EC-NUI these seats are in even-numbered rows. Depending on your seat preferences you might like to check if your previous seat assignments are still appropriate.

I'm flying SYD-MNL in J next week, so I assume it will be on EC-NCK. PAL was good enough to reassign my seat (without prompting) so I remained in a close to window seat.

I'll try to take a photo (if I remember).