I know the release notes for Update 17 indicated some changes to a few challenges, but I'm curious to know if other changes were made. I ask because I was running Colossal Crystals, level 14, same character and level (monk 15) I always use. Invis, run, look to see if circle is present. Boring but works. Except every time it today, I pulled Yellow and Orange alerts. No fighting, just invis running. It also took longer to take down the bad guys. Is this a change to the challenges, or is it more of the nerfing of stealth and invisibility?