Do I understand the question?
You have 5 different Vectors (A, B, C, D, E) and a function/event/macro to take one of them and finding a Get Reach. Point. in a radius around that point…
Points around A and B work as expected, but C-E all find points around A?
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If that is the case, and you have a nav volume large enough to cover all of the areas, the problem is either in the method you are using to Select which vector to use, or in the storage of the vectors themselves.