This is happening because the 'tabbed group' container you are using shows two rows of tabs in design view, but only one (with buttons to navigate) in app view. In the latest version of MATLAB this isn't an issue. However, to rectify this you can:
1) Click on noth response panel and view it's position. Note the 'bottom' value, and set the same manually for tabbed group container.
2) Check the 'height' of Notch response, Crack to Notch, and the buttons and gaps, add them and set it as the height of tabbed container manually.