I have been trying to get the memory vestiges of light. I was able to get Seclusions, now trying to get any of the others does not drop anything.. I am able to collect the light memory fragments, I got up to 10 in my inventory and 10 in my postmaster and still unable to get any further memories of light. I deleted the ones both in my inventory and postmaster in the hopes that getting further would allow them to drop but I cannot get them. This is preventing me from advancing my prismatic subclass fragments and super annoying.