"stackView is busy" problem

[dauuser]

hy @ all
my app has some serious problems with a StackView. when a co-worker was testing the app, he was able to get it freezed, because he was tapping very fast on the screen. so I tried to spot the error, and finally found the problem.
it only happens when the MouseArea contains stackView.push(a component) or stackView.pop(). I suppose it's because the stackview is busy while the second (or even third, fourth...) click is registered and it then freezes the app. need to be said, that after a while the app sometimes starts working again, but most of the time a restart is needed.
anyway, I've created this workaround in the stackview:

         onBusyChanged: {
            if(stackView.busy){
                // don't show stackView, so no further clicks are possible
                stackView.visible = false
                console.log("busy")
            } else{
                // show stackView again
                stackView.visible = true
                console.log("not busy anymore")
            }
        }

but this seems not like a solution for me, because in another app the problem doesn't appear.
do you guys have any clues about what happens here? let me know if you need more code/information

thanks in advance!