We are using SP2013 on-premise enterprise edition. Recently our servers have been patched with various windows update (not SharePoint cumulative update). After then when browse to the MySite Web Host thru WFE1 it will return error
Method not found: 'System.String Microsoft.Office.Server.UserProfiles.UserProfile.AppendMySiteToUrl(System.String)'.
However, when browse thru WFE2 there is no problem. I compared the "Installed Window update" for both WFE and seems the same. What else I could check? Any experience on above error? Thanks.