GENERATE_SHAPER_GRAPHS Crashes Klipper

I am trying to run the shaper macro on my VCore-4 IDEX system. Beacon on T0, and the EBB42 with ADXL on T1.
When I run the macro (using defaults or specifying toolhead and axis as parameters), Klipper Crashes with the error "Internal error on command: "TEST_RESONANCES"

Not sure if it helps, but I've attached the klippy.log text when the error occurs