Apparently, if you're interested in multiple things that are included in a bundle that isn't the everything bundle, buy one from the everything bundle first, and in another purchase, use the other bundle.
For example, CinePerc from the everything bundle for $82ish first, and afterwards CineStrings Solo from the CineSymphony bundle for $67ish.
BTW, people on VI-C are saying CineSamples have been made aware of this glitch more than 48 hours ago and they've read but not responded to any messages.