So we’ve looked into the cause of this and it appears to be an issue specifically with split damage troops. As previously mentioned, troops doing fixed damage numbers (Krystenax, Knight Coronet etc) will kill the troops as expected, but split damage troops will leave the troops alive with 2 health.
I’ll add this to the Known Issues thread and we’ll investigate a fix for it.
EDIT: Also worth noting that this only applies to troops below Humility in the team order, any troops above it will die from the split damage as normal.
@turintuor Just re-reading your first post, you’re saying troops are surviving with 2 armour? Did you mean 2 life instead?