SRS/Surface Hub search not returning people

Hoping I am able to explain this adequately.  Issue is occurring across multiple SRS and Surface Hubs.

When starting an ad-hoc meeting on both devices, when searching for people, results are very inconsistent.  When you start typing in letters to find someone, if you type 3 letters you may receive results.  If you add a 4th letter and then a 5th letter, there are not results.  If you type in a 6th letter, you will receive results.  Add a 7th letter and you continue to receive the error No Results Found.

Mind you that these results are totally inconsistent.  Sometimes you need to type 4 letter to receive results but adding the 5th letter results in nothing found.  Same weirdness happens when you back letters out.  My next test is to try this in a Teams meeting on the same devices.

Just put a new Hub 2 in our C-Suite and want to resolve this quickly before frustration rises.