I FOUND A SOLUTION!
I had trade tier 3 and charm tier 3 perks so they crashed the hideout mission for me..
Download the mod:
Export/Import character to modify attributes, skills, and perks from text file
www.nexusmods.com
(a mod called "Character Export Import")
(remember to unblock all the mod files, I just realised this after a couple of crashes... Doh!)
Export your character and remove all tier 3 skills or above and import it again.
Do the mission and then you can set your skills again..
I just completed a hideout after doing this..