Hi Claude,Thanks for taking the time to answer me.I've followed your advice to create a new project and there I had no problem on ios 13 when using simulator but I retrieve the problem on one device.I went back to my main project and this time it works normally everywhere, after a new generation of the Xcode project using Cmake.I'm a bit confused because I don't know what have change that makes it work now. But is does 😁Lucie