0.9.11 Covert not working in GotG, among other cases

Sometimes, the trait Covert (timeline is based on Attack, rather than Speed) doesn’t seem to work in a few normal battles almost at random, with enemy creatures being able to act before some of my creatures despite my party members having more attack than they do. In any GotG fight, this extends to pretty much all battles, where all of the enemies can move before my party, despite my creatures having much more Attack than the enemy.