On the podcast, which Katie co-hosts with Jo Elvin, the Vanity Fair royal editor said that Prince Harry is also making his father “nervous” because he isn’t going through official channels to communicate.
Nicholl said: “I actually think the real reason [they did not meet] is because the King knows any conversation he has with Harry, there’s a very high chance it will be leaked. I actually got on the phone and spoke with someone very close with the King, and they said that’s exactly it.
“The relationship actually between the King and his youngest son is at an all-time low at the moment because Harry isn’t going through the official channels when he wants to reach out to Charles.”
She continued: “That official channel is by going through his private secretary.
“What Harry does is to go off-piste and try and contact his father directly, and that makes Charles nervous.”