Archangel lost his horseman ability in Incursion
Long story short: used Apocalypse in Incursion to make AA a horseman and in the next zone I removed Apoc from the team. On the boss in zone 4, threat level 6 I force closed the app (was losing badly and I preferred losing 50% health).
When I reopened the game AA was not a horseman anymore...
I wonder if the same could happen with Galan or Odin pre fight abilities