I am on version 5.2.  I have figured out the nature of the problem.  I am in a Web Farm with 8 Web Servers.  There is a difference in the settingshash parameter in the query string.

On 5 of these servers
clean.Aspx?settinghash=5807c27d

On 2 of these servers
clean.aspx?settinghash=e06e035d

On 1 of these servers
clean.aspx?settinghash=6618abbd

How can I make the settinghash the same on every server?