This is where I have a lot of sympathy for Meghan because if I googled royal film premier Meghan’s dress would fit in, although the skirt is a bit wide for a cinema. This was not however a UK film premier and Jamaica is a bit more laid back so a tuxedo style trouser suit may have been better.
Meghan was only part of the working royals for a couple of years and so didn’t have (want?) the benefit of long standing staff advising her what is appropriate to wear at an event. She therefore didn’t get to hone her “royal engagement uniform” like Camilla and Catherine have.
In the Netflix series M & H were both saying she didn’t know what to wear on her first royal engagement, I immediately said Google it. I also would have expected their staff to advise.
Meghan is now in limbo, she is not MM the actor where she would know what to wear on a red carpet, she is Duchess of Sussex but has little experience of her style in that role. I would expect the RF staff to do some discrete phone calls to find out the dress code and to brief Camilla, Catherine etc. this could be what the climate is, what the activities are, the culture etc. Meghan doesn’t have that.
Interestingly Harry seems to have got it right and I think some of that is instinctive given his background.
I am not saying Meghan should dress like other women in the RF as I like her style but she perhaps would benefit from someone with experience helping her to understand what an engagement requires.
A good example is Beatrice who, since her marriage, just seems to get it right. By all accounts she has an adviser to assist her.