A former Strictly Come Dancing star has said the "biggest reason" he left the show was because the BBC kept changing its producers.
Artem Chigvintsev, who appeared as a professional dancer on the BBC One series from 2010 to 2013, said it was "tough" working with different people because "everybody tried to bring something new".
The Russian, who won the dance contest with Kara Tointon in 2010 and ended up dating the actress, has appeared on Dancing With The Stars - the US version of Strictly - since leaving the UK.
Speaking at a charity event in Los Angeles, Artem told the Press Association: "To me what was tough... the BBC kept changing producers and executive producers of the show. So once you really know how to work with one person, then they are changing and you're trying to find a way to work with another person.
"I think that was my biggest determination why I wanted to leave the show.
"Everybody tried to bring something new and tried to change it. I'm always a big believer of 'why change something when it really works'. I think that's the biggest reason why I left."
Chigvintsev, who attended the Annual Race to Erase MS Gala at the Beverly Hilton hotel, said Strictly remained a "beast" as it consistently beat its rival talent show X Factor in the ratings.
He said: "I had a fun four years, I had different partners and was lucky enough to win the show. I just wanted to try something else. When Dancing With The Stars approached me, I thought about it and why not try?
"I don't know what the future holds. We'll see.
"I'm definitely going to be doing something in the UK but I don't know if it's going to be Strictly as a competitive professional."