Thanks for the great release!
1) I am experiencing the same behavior. The per-game setting list no longer shows ps2 settings as it uses to do before with 5.25.
If this is intended behavior, where can one access the same settings again?
2) Also, when I restore the default configuration of ps1 emulator from emulator settings (command+B), the emulator freezes. It had to be manually closed using alt+f4
After closing, ps1 emulator reported that bios for ps1 is missing. Restoring the bios did not help. I fixed it by manually setting the bios path from directories to the bios folder.