When you browse or search an Exchange Server database containing messages, no messages are displayed or the returned search results are incorrect. This problem shows up when you have a fully functional non-trial license installed.
NOTE To make sure that you are affected by the issue described in this article, check the version of the Mapi32.dll file located in the %SystemRoot%\System32 folder. If the file version is higher than 1.0.x, then the below workaround is applicable to your case.
The MAPI subsystem is configured improperly.
Run the Fixmapi.exe utility located in %SystemRoot%\System32.
Waiting for a fix in a future release of Recovery Manager for Exchange.