Thank you, will be fixed with the mac compatibility updates.
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Computing the probability that at least one of the following events will occur:
P(a or b ... or z) = 1 - P(!a and !b ... and !z) Probability
It looks like it is still triggering a ghost global cooldown, it will be fixed next client patch, but you should still be able to remove many gems in rapid succession in the mean time.
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Computing the probability that at least one of the following events will occur:
P(a or b ... or z) = 1 - P(!a and !b ... and !z) Probability