Is it true that all your protection spells are removed ???
cause my caracthers dont lose the protection symbols, the only appear as fatigued !!

Would a Prtoection from evil stop Irenicu's demons ??

No it is not true, your protections aren't removed, and please check your spelling!

When your characters appear fatigued it is probably when they get shot back by Jon when he appears, or the spell haste has run out, or you have kept them up for over twenty-four hours

Most demons ignore you, if you have protection from evil, but Irenicus'es demons don't.

Yes, it's a bit of a bummer, but they aren't that hard to kill, Just leave Jonny-boy alone, and go after the demons first.

I had my summoned creatures deal with the demons and had my crew focus on Jon.