Profiler: What is the max voice count that the profiler can display?

Question

Hi.

I've noticed that after a certain point the wwise profiler will stop recording the actual voice counts and stop updating the Voice graph/Voices tab.

For example:

[ Number of Voices (Physical) 149 ]

will turn into: 

[ Number of Voices (Physical) - ]

This basically only happens when you have a leak somewhere, and i've witnessed it going above 1200 voices.

I'm curious to know if there is a set value where the profiler will stop updating, or if it is tied somehow to a memory pool size or something like that.