Update on this bug: I tried doing this boss 3-4 times yesterday. On all tries Pettas didn't spawn. Today, someone who didn't experience this bug shared me a few pso2 files and I replaced my files with them. Tried doing Pettas 20 minutes ago and lo and behold he's spawning for me again. Is this bug related to some sort of file corruption when I updated my game after maintenance?
Converse with fellow players