I have run Vespers host an inordinate amount of times for the exotic not to drop which is a sentiment shared by many in the community who believe the drop to be bugged. On top of this I have noticed that the velocity baton roll of demolitionist and attrition orbs is also bugged in the hudreds of vesper host clears I have done I have not seen a single one. There is literally no way velocity baton demo and attrition is weighted correctly if every roll is supposed to have an equal chance to drop. Lastly the catalyst quest is bugged for me. I have been randomly doing different parts as they have become available or when in groups over my many runs I have not gotten icebreaker but yesterday when doing the math puzzle before the trip mine room I had the catalys masterwork unlock for my character despite not having icebreaker, this is the only catalyst in the game I have gotten masterworked before the weapon drop itself and I think that probably has caused an issue in the game code somewhere, because that is not how that usually works. I believe that because the game thinks I have icebreaker it isn't dropping for me, yet I do not know for sure. Also from what I read to get the catalyst you need to shoot ice crytals with icebreaker so I am lost as to why it would drop prior to the weapon itself being attained. I have done the first set of message quests where you step on the plates in various areas of the dungeon and then collect messages. I have also done multiple math puzzles to the point I don't have them showing up for me anymore yet the shield to the room after the tripmine room is not letting me pass and the second treasure room won't allow me access either. There is no path to progress at this point. In summary; No weapon, no weapon drops, a catalyst and random drops that are also bugged. Please forward this to the team that can handle bug fixes. Based on my research on reddit I am not the only one suffering from this issue and it's been months on end. I included an image of my menu so you can see what I am seeing.