Issue
Several customers reported that child primary sites were entering maintenance mode after upgrading the central administration site from System Center 2012 Configuration Manager Service Pack 1 (SP1) with CU2 or CU3 to System Center 2012 R2 Configuration Manager. Entries similar to the following were recorded in the RcmCtrl.log file at child primary sites:
ERROR: Exception message: [A .NET Framework error occurred during execution of user-defined routine or aggregate "spModifyGlobalTable...(read more)
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