Difficulty getting to Confluence view after upgrade to Viewport 2.18.2

Since upgrade to 2.18.2, many of our internal Viewport users are reporting that when attempting to access their Confluence view (i.e. samplecompany.com/display/spacename) - the page just refreshes back to the Viewport page i.e. samplecompany.com/spacename.    

We can have the users log out, then visit some other non-Viewport space, log in there, then go back to their Viewport space and the samplecompany.com/display/spacename will work and show the correct Confluence view for the page.  

I've walked through support, Google and version notes and not finding anything conclusive.  Has anyone seen this behavior and if so, any solution?   Thanks!