I can say that the bloody party streamers feel like they have gotten more rare. It also feels like certain add-ons aren't coming up as often as others. Been trying to stockpile some Scratched Mirror add-ons on Myers and despite how many levels of the bloodweb I went through...not one had shown up. every other very rare and ultra rare popped up multiple times...but the one I wanted...not even one. Possible it is just some weird RNG....but it is also possible things got messed up somehow for the bloodwebs.