The featured dungeon is once again Vesper's Host but even though the encounters are farmable for weapons and armor the exotic weapon is not, and you still only have a single chance per characters as usual. I was able to confirm it since it is not appearing on "TodayInDestiny" website which supposedly takes the information directly from the API.
Any chance that can get fixed within the week, I'm on 60 clears and I really want that Ice Breaker :(
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Thanks for reporting. The team is already aware of this issue and it is now being investigated.