Qml Dynamic Keyframes example doesn't always respond properly to the buttons

Qmldynamickeyframes example doesn't always respond correctly to button presses. for example, pressing change slide button seems to always increment the target slide id, but the slide doesn't always change when the button is pressed, resulting in occasional weird slide transions. Same issue with color changes, sometimes clicking doesn't change the color and the next click skips one color in the rotation.

Adding console.log() calls to MouseArea onClicked handers shows that the mouse clicks are all registered in QML, so the event get lost somewhere along the way to the studio or studio fails to act on it.