Sold planes still shown in “My Fleet” at IAD

Platform:
iOS

Game Version:
3.4.0

Airport:
IAD

Description of the Bug:
Two A350s has just finished players contracts which was then cancelled, however, after I sold these planes, they remain to be displayed in the “My Fleet” section even after I restarted the game.

Screenshots:

Looks like it’s undergoing maintenance? Did you start the maintenance and then sold it? If so it will be removed from your view as soon as maintenance completed.

No actually they’ve been sold right after the contracts were canceled. No maintenance done. And they have already departed the airport.