The Duke and Duchess of Sussex confirmed on Friday that they were “excited and honoured” to attend the celebrations for the monarch’s milestone in June with their eldest child, Archie, and his sister Lilibet.
The insider added: “While the family are delighted Harry and Meghan are coming, there is a real fear of tension, especially over any Netflix crew. There are concerns tensions could explode if the Netflix team comes to the UK and tries to exploit their opportunities.
“The worry is they will push it and try to gain access to areas of Jubilee celebration events where they can film Harry and Meghan and their children.
“Even if they accept that their Netflix crew can’t go into Buckingham Palace to film, they could cause problems – and at the very least cause a major distraction.
“Senior courtiers believe that Netflix will see it as one big opportunity to exploit their mega-millions agreement with the couple.
“So a team of Palace aides will be on standby to keep a very close eye on the crew, and act as minders if needs be.”
The pair struck a deal reportedly worth up to £81m to produce content for the streaming giant in 2020.
One of the planned bits of content for the streaing giant, Pearl has now been axed by the streaming giant which lost 200,000 subscribers last month.
Buckingham Palace has been approached for comment.