Homecoming free crystal challenge
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I just popped 9 free crystals to complete my homecoming challenge and it only counted for one. I guess I assumed if I saved up and popped them all I could get the remaining 9 in one satisfying pop. But now I have to wait for another 8 free crystals.
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If so, (last I heard someone say this was a while ago, but was about an Objective) then that is how it was designed.
Unlike the SOLO EVENT for Crystal Openings, where you can pop as many at a single time (well, up to 10 anyways) and they all count towards Global Crystal Opening event (Solo points, and global points).