Have run about 15-20 Nessus Boss battles in an attempt to complete “Not a Void Crystal” triumph so I can complete the Museum Curator triumph; however, the 400g Violet Radiolite Sample does not seem to drop. I don’t mind grinding, but I’m curious if this is bugged or not. I’ve had about 5 Ronin Ghost Shells drop and numerous weapons/armor, but the sample has yet to drop. Any ideas or is this just a very low drop percentage? I’ve collected all the other samples. This is the last one. Thanks for the help.