Yes, there is a bug with [b]Praxic Blade[/b] Catalysts where getting [i]either[/i] [b]Hyperblade[/b] or [b]UpperHand[/b] will lock you out of being able to obtain the other. I have seen a youtube video claiming there is a planned fix for this issue with next week’s update, but as I didn’t pay attention to what if any sources they cited in making this claim I don’t know how credible it is. That said there is apparently a workaround; if you group up with another player who has not yet obtained [u]either[/u] of these two Catalysts and complete the requirements to spawn the chests for both [b]in a single run[/b], you should be able to obtain the Catalyst you are missing. [b]Echoing Blade[/b] does not appear to factor into either the underlying issue or the solution, so getting it won’t lock anybody out of getting either of the remaining Catalysts and it is not required to complete the requirements to spawn its chest for the workaround. (΄◉◞౪◟◉｀)