connection to emitter, doesn't affect QML elements

Shadow.01

Dear users,
in my QML view I have a connection to an emitter. The syntax is something like the following. The really strange thing is that, if I put inside the onEvent section a console.log with, i.e., the emitted value, all works perfectly. If I put an any instruction that affect a QML element (also not related to the emitted value, as in the following example), nothing happens. Why? Thank you very much!

(...some QML elements...)

Connections {
            target: myengine 

            onInitProgress: {

                console.log(progress);
                labelCount.text = "test";

                
            }
        }

(...some QML elements...)

raven-worx

@Shadow-01
how does the emitting of the signal look like?
how do you create "myengine", anything special here?

Shadow.01

Thank you very much for the reply, the question was partially solved. Now I post one other but, in according to your reply, more detailed. Thanks again for the reply.