IOS side, the last 3 events, my guild has had people join AFTER the event started. This doesn't seem right, as 1. leaving or joining a guild during events has always been prohibited 2. even the guild master can't remove or promote/demote during events and 3 this is now an ideal way to sabotage a guild during war events.

Please, either remove the ability to join (put to back the way it was, in other words) or give at least the guild master the ability to remove people during events.