I received my first warning about an attack, moved the party to the stronghold, handled a petitioner and some other stuff then just used the resting button to let time go by until the attack started.
I got no prompt to resolve the attack, seems like my party was sleeping very hard lol, I was just noticed that the fight had gone badly, damages and whatnot.

What am I missing here? Is it a known glitch so I should just reload and retry?