Still, both ladies looked equally stunning: Kudos to Meghan for (continuing!) to march to her own fashion beat!
After a few seconds of struggle, he smiles, causing Meghan to smile as well, leaning in to see if she can help him out.
The event, which Harry and Meghan presented at Goldsmiths Hall, celebrates the achievements of wounded, injured and sick servicemen and women who have taken part in remarkable sporting and adventure challenges over the a year ago.
She also bent the rules by presenting an award before she's officially a Windsor, but it didn't seem to bother a supportive Harry, watching proudly from the audience. The Duchess of Cambridge, Markle's future sister-in-law also stepped out in an Alexander McQueen design at a separate event Thursday.
But all went awry when her co-presenter started frantically leafing through pages before admitting "We've got different notes".
It's a very modern style choice for the royal family, with many undoubtedly expecting Ms Markle to arrive in a glamorous dress for the event.
Markle donned a black Alexander McQueen skirt with a Tuxe shirt.
The gaffe didn't compare to Steve Harvey crowning the wrong victor of the 2015 Miss Universe Pageant, or last year's Academy Awards "Best Picture" flub.