I class-changed Caliope, but when I re-acted allies with the anime off, it crashed 
Huh. I didn’t know Caliope could class change with a normal promotion item. It likely crashed because she doesn’t have a proper promotion class set up. Was this with the Taleezian Herald or the Vrothian Crest? (Her animation data would be Great Lord from FE8)
When I tried to move Calliope, the “Promote” option appeared even though I didn’t have any promotion items.
Looks like FE8’s Great Lord, huh.
The battle animation didn’t play, though.
This happened in Chapter 9.
Was she level 20? Most classes can auto-promote at Level 20 in Liberty’s Beacon, but Elegist and Vandal are intended to have story-based promotions.
Yeah, it was level 20 