The dispute between "Kate" and "Meghan" before Meghan and Harry's wedding, does this have anything to do with Kate's old clothes on the wedding day?

The dispute between "Kate" and "Meghan" before Meghan and Harry's wedding, does this have anything to do with Kate's old clothes on the wedding day? 

After the rift between Kate Middleton and Megan became clear and exposed to the public, despite attempts to hide and act friendly in front of the cameras, we find that the two duchesses are really good at acting to the point that no one before noticed the disagreement.

According to sources who say that the dispute between them is because of Toby Megan to help two people with Kate, and this is due to Megan's wedding to Prince Harry,

 

During the wedding, Princess Kate was criticized for wearing a dress she had previously worn on previous occasions designed by Alexander McQueen, one at the birth of Queen Elizabeth and the other during her visit to Belgium, and this is considered inappropriate at a royal wedding, although we are used to Kate for repeating her clothes, it seems that she She meant that this behavior was due to the dispute between them.