On December 9th, Microsoft released a security update for Internet Explorer (MS14-080) that introduced instability issues with a number of internet applications, including OneSite. On December 17th, Microsoft released a fix to address the issues caused by the above update and RealPage has confirmed that the new fix resolves the OneSite issues that have been reported to us. Any customers that have installed the MS14-080 update should apply the KB3025390 patch which addresses this issue. See: https://support.microsoft.com/kb/3025390