I'm afraid I have not been able to track down the cause of the crashes. I think it is something in Tholal's code. I've been waiting for him to release another update to see if it stabilizes anything. I was thinking that the Meteor event was set to <bRecurring>1</bRecurring>, but is is actually <bRecurring>0</bRecurring>. I either changed this a while back, or was misremembering getting 3 Eternal Flames. I am positive that I have gotten a second Eternal Flames from the event after constructing on the regular way in a few games though. I personally don't consider that a problem. I just set Adventurers to be able to upgrade to Bhall Orcs, and Monks too while I am at it. I can see that they already have Champions in their list of upgrades, so nothing short of adding a special (resource inefficient) spell would let them become Ogres. Since the Mysticism requirement might confuse people, I'm thinking of removing the tech prereq from Bhall Orcs altogether. Requiring the Eternal Flame should be enough. This will of course make that Meteor event extremely useful in the very early game.