This person does seem to rub people the wrong way
Ricardel most recently feuding with members of the first lady's staff over her trip to Africa. One person familiar with the matter said Ricardel quarreled with the first lady's staff over seating on the plane and use of National Security Council resources.
A White House official accused Ricardel of being dishonest about the feud and subsequently leaking stories to try to cover her behavior.
And before her spat with the East Wing, Ricardel butted heads repeatedly with Defense Secretary Jim Mattis, a rivalry that was well-known within the Trump administration. Her disputes with Mattis preceded her time as deputy national security adviser, going back to the presidential transition when Ricardel sought to block Mattis from hiring certain people who had been critical of Trump or were viewed as insufficiently loyal to Trump.
Tensions had also been rising between Ricardel and chief of staff John Kelly and his deputy Zach Fuentes in recent weeks, according to people familiar with the matter. Kelly and Fuentes believe Ricardel was leaking negative stories about them to the press, the people said.
Even one NSC official who said they liked Ricardel said she "liked to pick fights with a lot of different folks" and suspected her latest feud with the first lady's office was "the last straw."
https://www.cnn.com/2018/11/13/politics/melania-trump-mira-ricardel/index.html