This is still an issue from A350 days... never fixed:

and

Edited 6 hours ago6 hr by RogerWilco

2 hours ago, RogerWilco said:

This is still an issue from A350 days... never fixed:

and

Hi,

Is this occuring in flight? Or during the set-up process.

Thanks!

All the time.

18 minutes ago, RogerWilco said:

All the time.

Okay, do you have any discontinuities in your flight plan?

No.

Can also confirm.
Just as one reaches TOC, the prediction suddenly changes to a value that comes close to the prediction in simbrief.

Also: the initial cruising alt from simbrief (offical inibuilds A380 profile) is always 2-4k ft lower than the actual optimum altitude in the fms. Just as one reaches the end of the flightplan, the optimum cruise alt in the fms corresponds to the step alt profile from simbrief

36 minutes ago, Matthias0412 said:

Can also confirm.
Just as one reaches TOC, the prediction suddenly changes to a value that comes close to the prediction in simbrief.

Also: the initial cruising alt from simbrief (offical inibuilds A380 profile) is always 2-4k ft lower than the actual optimum altitude in the fms. Just as one reaches the end of the flightplan, the optimum cruise alt in the fms corresponds to the step alt profile from simbrief

Thanks, will log for the team!