[Digress]

Upon testing the issue appears to resolve itself without crashing the game. Ulm Reborn loses its national spells for a turn then regains them - I assume it was an odd effect generated when I patched from 3.10 to 3.14.

I will submit Ulm Reborn's turn to the llamaserver ASAP and inform Jazzepi.

Thanks all - especially Llamabeast.