Exporting Archives using Export Wizard hangs indefinitely.
This issue can be identified by dtracing migratorserver.exe and indentifying the Export Archive Wizard thread. The process will hang on the following line:
 (MigratorServer) <6316> EV:M (pstprovider)CloseMAPISession() - Entering Routine
This issue has been acknowledged to occur when using the Export Archive Wizard in conjunction with Vault Cache.
This issue is resolved in the following release:
Enterprise Vault 9.0.2