Hit maximum number of consecutive signals, stopping

When I run this project https://github.com/ArboreusSystems/arboreus_examples/tree/master/qt/QML/ListView/ListView_v9 in Debug Mode on physical iPhone device in DEBUG I have this error (see screenshot) When I run it directly in XCode all is OK.

When I run it in Release on iOS physical device all is OK. When I run in Simulator all is Ok.
When I run it on Android or MacOS all is OK 

Qt Creator 4.14.2 Qt 5.15.6 MacOS Catalina 10.15.7