3.1.0 - iOS Cluster annotations do not add up correctly

[mas222]

When clustering is enabled and there are several clusterAnnotations near each other the numbers displayed do not add up to the true total. While watching a map with about 150 locations , you can see that there are cluster annotations that show up and disappear. These Disappearing annotations seem to be the difference in the count matching, for a split second I can see 2 cluster annotations that will show 75 and 36,(these 2 are very close on the map) but then the 75 while disappear. And counting the remaining annotations and cluster annotations we would be missing 75, the same as the disappearing cluster annotation. I am not very familiar with the underlying logic, but it seems to be clustering clusters but not updating the count.