So I just posted a new thread and realized that I left this one open ended, my apologies. The issue has been solved. The issue was primarily caused by the load. A High pressure reciprocating pump. The load was actually driving power back to the VFD on its return cycle. There were two options for a fix. Getting a MUCH bigger VFD, or add braking resistors to dump the extra energy. We opted for the later. System has been working well for almost three years now.Maybe the OP would have the good grace to confirm that......