Yessir! That's what I did. As far as I'm aware anyway...
I cleared all the levels of the Rak Shur pride (3 I believe). It was the final pride I cleared. I cleared the pride that has the slime stairway in it second. Found the stairway, placed two orbs (and fought the guardians) then ported out to get the other two orbs. Fought through the two prides, went back to the slime tunnel to discover one orb missing.
Went back to RakShur and all the levels were cleared but no orb laying around.
I did some reading and discovered how to delete the .teal file from my save profile to cause the level to respawn. I hoped I could kill him again and get the orb - but I don't think he spawned.
So then I poked around in the lua console and found what APPEARS to be a count of how many of each type animal I have killed. I tried setting that back to 0 for the necromancer and regenerating all of the levels of RakShur but again he did not spawn :/
I have been trying to figure out how the console interacts with inventory to see if I can spawn the orb but so far not a ton of luck with my trial/erroring.
I'll happily try and ping you tonight (though I'm not totally sure how to do that) and thank in advance for whatever help I get!
As for add-ons I am running a few officials and one 'unofficial' - here's a screencap of the add-ons and the related versions.
https://www.dropbox.com/s/wkdvhzpeb150zhv/Taj_AddOns_Fryar.png?dl=0