System does not allow for contact fusion of Gaiapellio in Ritual Beasts.
Bug reproduction steps
Tried to special summon, but only the standard cards were available, I also summoned Wen incase the issue was with Zeframpilica but did not work…there was Ulti-Apellio on the field, Ulti-Kimmunfalcos and 2 tamers + 2 beasts. All conditions were met, and I had been contact fusing in the turn.
Screenshot OR error code
The card in question has its set code missing 0x40b5 Ritual Beast Ulti-
The reason is that on yugipedia the archetype name is missing -
Either yugipedia change or strings.conf