My guildmates and I guarded some sigils the other day. At the end of our guard time, it said some sigils were corrupted so we went to take them down and place them on the monoliths, but it told us that we couldn't remove them. I paged a GM, but literally five hours later was still in the queue. By then, enemy factions had come in and taken them because we just couldn't defend anymore. Yet I've noticed another faction is able to corrupt/move the sigils and even have town guards and such. What on Earth is going on?