ILLIA FOLLOWER BUG FIX
Illia is a character in vanilla Skyrim that you meet in Darklight tower, she is the leading character in the quest 'Repentance'
After completing the quest she can be recruited as a follower, however in the default game there was a nasty bug that prevented you from recruiting her again after being dismissed from service, which caused massive problems when the player needed to change companions, leave companions behind for a quest, or any other scripted event that took her out of your service for a period of time, such as marrying her (although that required the console to work)

This mod changes sections of her actor information to repair the bug, the cause of which was the DarklightPlayerAlly faction which was unneeded for Illia.

I have tested the modifications to ensure nothing has broken, the Repentance quest still works as intended without problems and I have been able to make sure she can be consistently dismissed and recruited when needed.
I've also made it possible to marry Illia after the end of the quest, just because she is a expert of cyro-mancy, does not mean you cannot melt her heart

Please use the Comments section on this mod page to report any issues, I do read them when they appear.