JUCE application not showing window but running in the background

Good day Everyone,
I am very new to JUCE and trying hard to get good at it. At first I did some projects in Visual Studio 2019 and all the applications did run. I tried to run and debug my VST projects to ableton and failed to run it.

Now I am figuring out how to bring back the stand alone window when I am trying to run my program in visual studio.

When I go to the JUCE files and run the stand alone application it clearly runs in the background but the application window never show up.

All it did is stacking the running apps in the background. As shown above the dialTest1 is just stacking in the background but not opening the window.

p.s: sorry for my bad English. Thank you.