This is a known issue with Aurora 8B10B v10.3/Aurora 64B66B v9.3 cores in IPI use mode only.
This issue is fixed in the 2015.1 release.
As a work-around, the <component_name>_core.v file needs to be updated.
The DRP input ports connected in the wrapper instance need to be connected to GND.
01/28/2015 - Initial Release