Another day, another controversy for Meghan Markle and Prince Harry. This time it is regarding their choice of transportation -- a private jet.

Last week, the Duke and Duchess of Sussex were photographed leaving a private jet after arriving in Nice, France, to vacation at musician Elton John's house. Royal commentator Roya Nikkhah shared her thoughts on the matter and clarified that a private jet isn't the typical means of travel for the British royal family when she appeared on "The Royal Box."

“They’ve occasionally taken private jets. The Duke of Westminster has loaned them his private jet for a few hunting trips abroad," she said, as reported by Express. “But by and large, most of the time most members of the Royal Family take commercial flights for their holidays.”

READ: Meghan Markle Could Break This Tradition For Baby No. 2

This particular controversy doesn't solely revolve around the private method of transportation though, but more so the principle behind it. The Duke and Duchess are known to being outspoken about environmental concerns, especially climate change, and private jets don't exactly do much to serve that cause.

“I think if you are then going to make it one of your causes, that you feel you need to be very careful about your Carbon footprint. You have then got to be very careful that practicing the message you preach is really important," Nikkhah explained.

She added that if Meghan and Harry fail to make a change they "risk distracting" from the work they are trying to do to which "The Royal Box" host agreed and added would end up looking like “great hypocrites”.

Meghan Markle and Prince Harry
Meghan Markle and Prince Harry attended a reception to mark the fiftieth anniversary of the investiture of the Prince of Wales on March 5, 2019 in London, England. Dominic Lipinski - WPA Pool/Getty Images