So, in our chat we've discovered that regardless of the rarity you are missing, you can only get three kinds of the four buffs for each type.

For example, I have the uncommon, rare, and epic buff of the instant-gold buff (Delorean, Time Turner, Quantum Leap), but I can't seem to get any copies of the common buff. For every other one, I have the Common, Uncommon, and Rare copies, but no epics.

Other people have said much the same thing; it doesn't seem like anyone is holding all four rarities at once. Someone brought up that this might be a glitch - maybe it's counting different rarities the same as a single character's equipment slots, thus limiting them to 3 each and preventing a fourth from dropping?

In any case, we're wondering if this was intentional. If it was, it may be possible to manipulate the epic drops from Jeweled Chests - if we have all the Common, Uncommon, and Rare buffs, and if Jeweled Chests don't give out instant-gold, then the epics from them MUST be equipment, no?

Well, either they saw this and fixed it, or it was never broken and our room just had the weirdest string of luck. But I just opened a chest and now I carry all four of a single kind of buff. So case closed, lol.