Descent: PM sees target speed 171kt instead of 250kt

[Meyerflyer 154]

I was PM, my friend was PF. During descent shortly before levelling of at FL110 on approach to LSZH, I as PM saw a target speed of 171, as if the approach phase was already activated. But the approach phase wasn't activated an we flew in managed speed mode. My colleague's display showed 250kt as target speed and the speed held at 250kt as expected. Please see screenshot below of my Airbus display. There seems to be a kind of sync error between us.

 

After my PF switched to selected speed (250kt), my target speed was correct throughout the remainder of the flight. It only happend in descent during approach together with managed speed.

 

Both using 1.2.4.0. Other than that, we had no major sync issues and we even got the absolutely same weather using AS4 in the same AS4 version.

 

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