When Pakistan PM Imran Khan was insulted

As per the reports in The Friday Times, Saudi Crown Prince Salman was so angry with Pakistan Prime Minister Imran Khan that he recalled his private jet. Saudi Crown Prince had given his private jet to Imran Khan to travel to America and attend 74th session of UNGA. But when he was returning, the plane was taken back to New York stating technical glitch. But actually it was Imran Khan's anger that left Imran Khan in lurch