Sprint Interval start stops

I am using the Kickr Core and the Mac app. In my intervals in erg mode it seems to end early by a few seconds. As a result I am always under target for the interval. Especially in short sprint intervals.
e.g.

Is this because I have 3 second power smoothing? Something else?

Thanks.

I have exactly the same problem. Can end up as much as 20W low on a short interval of 30sec. Riding a Tacx Neo.
Would love to hear the explanation for this…

Power smoothing only affects the display number, it doesn’t control the trainer. Make sure all systems have the latest updates and calibrate before every workout. If it continues and power numbers are significantly lower, contact TR support.

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