MCF8329A: Troubleshooting LOCK_ILIMIT faults, discrepancy with BUS_CURRENT

I'm testing the MCF8329EVM in an application with pretty high load that engages quickly and often getting LOCK_ILIMIT faults. My motor is rated for peak currents of 78A, my BASE_CURRENT is set to 0x1000 = 150A, and LOCK_ILIMIT is 65% = 97.5A

I'm monitoring BUS_CURRENT through the GUI and never seeing it go above 11A even during tests where the motor faults. I've monitored current out of the power supply with a current probe and oscilloscope and the values are definitely higher, peaks of ~20A, but that's still nowhere near the LOCK_ILIMIT setting.

According to the datasheet LOCK_ILIMIT is based off of phase current, which I presume must be different than bus current. How can I monitor this value? Either through the GUI or with an oscilloscope. I could try attaching probe around one of the phases but I have no way to predict which phase will be active during the fault and only have one current probe. Also why does BUS_CURRENT disagree with what I'm measuring coming out of the power supply? Is it just heavily averaged?