SP5 Spindle Misbehavior!

Hi all,
I am sharing an issue that I am having with upgrading to a 65mm spindle on my revision 3.0 Shapeoko 5 Pro 2x4. This has been submitted to support and Tyler was ON IT over the weekend no less! I’ve seen some variations to this problem on the forum like this but it was missing some important info I think.

The goods: Clean CM install, everything hooked up, turned on, machine initialized, settings adjusted for VFD Spindle and NO bitrunner, no GFCI.

VFD is flashing “400.0”
When button is pushed, spindle starts and goes immediately to 24k
No commands from CM have been given
Doesn’t even matter if computer is plugged in
Stop command in MDI doesn’t work

Seems like a hot signal is going from the controller to the VFD unchecked, anyone know what the flashing “400.0” means? If I unplug the VFD from the cnc, it flashes 0.0 and the spindle doesn’t run. Is there a list of the possible codes so we can check these things ourselves? I’m getting 24v on the red wire out of the spindle plug and ~4.28v on the green, seems like the green should be zero if it’s indeed the PWM line…

I will post updates as they come!