E2-D does not climb to designated altitude, stucks at 18k feet

[Blackfyre]

Subj.
E2 effectively unable to climb above 18k feet. It takes up to 2 hours to gain say 27k altitude. And even if you place E2 at 21k initial altitude and ask to climb to 27k it will descend first and then very slowly will start gain altitude.
nullTrack included.

E2-does-not-climb.trk