FMS calculated climb speed in VNAV oscillating - 744

[Sekkha 15]

I am recently (since the last update I believe) seeing that on many climbs the FMS calculated climb speed is oscillating 1-3 knots,  in my last flight for example it was during quite some time constantly changing between 341 , 342 and 343 knots in the PFD as well as in the CDU,  max angle value is flashing then also..

That was never the case before. So, I dont know, is that realistic behaviour or is it maybe a little bug ?

thank you and best regards

[downscc 1,327]

Are you climbing to an altitude below the maximum indicated for your weight? What is the CI?  Is SAT stable or is it varying?

[Sekkha 15]

Altitude was always way below maximum and I have seen it already with different CIs , on the last flight it was 120, on other flights where it occured I think it was around 100 as well

I cant remember seeing any accompanying oscillation in SAT, however I will have a closer look a that next time