This just started on our Exchange 2013 server after the CU23 update was installed (KB5000871). We receive the following many times a day. I have gone through countless articles, but apparently 4999 is very generic and there are many different versions to this particular Event ID, but I cannot find one specific for this.
Watson report about to be sent for process id: 21000, with parameters: E12IIS, c-RTL-AMD64, 15.00.1497.012, w3wp#MSExchangeOWAAppPool, M.E.Data.ApplicationLogic, M.E.D.A.C.BackEndServer.FromString, System.ArgumentException, 96e2, 15.00.1497.012.
Please advise as to a fix. Thank you