Menu Numbering going crazy

Hello, We have a series of courses that I just updated from SL2 to 360 and after updating the courses, on 3 of the 5 course the numbering system starts to do very weird things.  It changes the numbers constantly as you move around. I captured a screencast to show what happens as an example. https://www.screencast.com/t/VXFcBxzos9

Has anyone every seen this before. We have number the entries automatically selected.  Could there be a glitch in the matrix that's not causing this to work right? Maybe i'm missing something.  

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