Spindle on HDM v3 spins briefly after pendant stop, reconnect

I wanted to check in with the community here about something I noticed.

I was trying out some new toolpaths with a new bit I wasn’ familiar with so during one cut I made use of the stop button on the pendant (the ones made by Carbide 3D). It stopped the cut and the spindle spun down. When I moved to the laptop, I saw that Carbide Motion had disconnected so i reconnected and surprisingly, I saw that spun up the spindle for a second or two. That feels like a unexpected outcome and I wanted to check on that.

The spindle doesn’t spin up if I connect to the machine after its been powered down for example.

I can do more troubleshooting if needed but wanted to check if this was expected behavior… and I would think it shouldn’t spin the spindle.

I have the VFD and 65mm spindle on my machine and it briefly spins up (less than a second) when I connect to CM. Just long enough for my dust collection switch to power on my shop vac.

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