There was this one game where I died to the acorn (can't remember the characters name) and my controller vibrated nonstop until I died again, this may not be a acorn glitch and may just be the game glitching but I havent had the problem since, just thought I'd share the experience in case it's happened to anyone else.
I've had this happen too, randomly, and with various characters. The controller vibration will suddenly be there, then not during game play.
ETA: Was playing the new Weirding Woods open section on an Engineer with vibration working. Spoke to a quest giver (Otto Do?), and after interaction was complete, no more vibration. Continued play as normal, without any resetting, some time later after several other quests/interactions vibrations randomly came back. Also, this may be tied to pixelation/graphics distortion which started up again.
