First of all, many thanks for such a detailed report :D

Fact one: Abdul has his own singularity. Because AC is designed as a weapon, there could potentially be several copies. It is not surprising that a powerful archmage would acquire or recreate such an artifact. Of course, it was introduced to make it more difficult for the player to fight Al-Hazred.

Fact two: Abdul has AC MK II, and the player can upgrade his AC to MK II version. But even if he does, the two artifacts will work a little differently. They both have the same modifiers and allow the same interaction (Use singularity), but Abdul's version is undetectable by triangulation or artifact search, it won't respawn if destroyed, I guess it can't be taken over by dueling or imprisoning. It also does not go to sleep (although I don't remember at the moment if any version of MKII goes to sleep). The basic version of AC goes into a dormant state, some time after the person who activated it dies.

Fact three: Abdul's version is designed with him in mind ;) The player should not be able to get it, this is my oversight. I'll have to think of something in this case. When one character has both versions, the wrong decisions can be available, as in your case. I take comfort in the fact that your case is quite extreme, but I will still have to address it. The whole thing is quite complicated, because... AC is not the simplest of magical artifacts, by the fact that its state can change in several ways ;p

Thanks for the info, regards ;)

I don't have both versions, only one. Good to know though, I figured he likely had his own coded version, and like I mentioned it did make sense from a gameplay perspective. Just broke things by unintentionally inheriting it.

Perhaps Abdul's version in the hands of the player is enough for there to be trouble. Although unfortunately I have not found the cause in the code. I think Abdul's AC will be destroyed when he dies. That will solve most of the problem, at least in this case.