[1.1.2570] Recruiting the stellarch and resulting weirdness

[Xalos]

Circumstances:
In the first time, I accept the end quest of royalty only to capture the stellarch, recrute him, change the heir of is title and kill him to get the Stellarch title on my count pawn.

What happened:
When the quest "respawn" in the quest tab, i cannot accept it because my pawn have a better title than count (I make a good reputation with the empire before).

What should happen:
I think, normally the quest can be accept with any title above count.

Steps you can follow to make the bug appear on your machine:
( I don't really know how make the bug appear but i think its link with having better title before the end quest of Royalty)

Savegame:
my save file is too big for the forum, so i upload it on a google drive
https://drive.google.com/open?id=1Q3Akhv26lQm3XBhZIO7aRdZcs2LSaR3u

Log file:
I didn't see anything relevant to this issue in the log

[Tynan]

I'm not sure this is really the bug; a stellarch couldn't be a vassal of another stellarch. I think the bug is more related to the fact that you were able to capture and recruit the first stellarch. Need to look into this. Thanks for reporting!