Electron Application changes height permanently when minimizing/maximizing

Question

This bug occurs when minimizing and maximizing the window of my application. After every min-/maximizing the window becomes a few pixels shorter. Here are images from before and after I repeated this process a few times.

Before & After

Here is my code for creating the window:

app.on('ready', function(){
    const display = electron.screen.getPrimaryDisplay();
    const maxiSize = display.workAreaSize;

    mainWindow = new BrowserWindow({resizable: false, 
                                    icon: "Media/Magnet_Icon.ico", 
                                    height: maxiSize.height, 
                                    width: maxiSize.width
                                    });


    mainWindow.loadURL(url.format({
        pathname: path.join(__dirname, 'MagnetMain.html'),
        protocol: 'file:',
        slashes: true
    }));
});

Any Ideas how to fix this?