qbs QML debugging doesn't work

After migration to QBS my QML debugging stopped working.

I made sure that:

1. I'm building a debug build, C++ debugging works
2. I've checked "Enable QML Debugging" in qt creator's Project tab
3. I've even tried to add qbs properties manually Qt.declarative.qmlDebugging:true Qt.quick.qmlDebugging:true

Still QtCreator says:

Some breakpoints cannot be handled by the debugger languages currently active, and will be ignored.

QML debugging works with an old .pro

My system:

• Linux archlinux 4.15.7-1-ARCH
• QBS 1.10.1
• Qt 5.10.1

It's not so clear, but there are TWO checkboxes. One at the build step, and another one in the run step.

So to get QML Debugging working you have to check both of them.

I missed the one under the "Projects->Run->Debugger settings->Enable QML"