Other save files for this bug.
English Gold version 2.1
Map: Bedouin.mx2
Saves: 0999.GX1 (scenario start), a 0833 atlas level five spell pyramid without wisdom 40.GX1
The Atlas AI hero, available for recruitment, has the Summon Air Elemental spell without having the Wisdom Expert skill.
Files: Level five spell pyramid without wisdom.7z
Files: https://drive.google.com/file/d/1_kUHordr3B-jklYLhP15BVUZpb4l5k0R/view?usp=sharing