@Realdealholy i think the Klaw/Ross scene is a flashback for a few reasons...
Ross thinks Wakanda is "Third World" but in Civil War both T'Chaka and T'Challa are given a HUGE amount of respect as royalty and important people within the MCU. T'Challa chases Bucky down a crowded street, causing probably millions of dollars in damage, and gets "punished" by having his own waiting room while Steve and Falcon are interrogated and treated as criminals.
In a deleted scene T'Challa is given permission from The UN to transfer Bucky to Wakanda to face trial for his Crimes. This Completely shocks Black Widow, no one from a "third world" country wielding that type of power.
So I think that scene may be a flashback, it might even take place early in the film before we see T'Challa return to Wkanda for his coronation