I've built a menu, and added some sub-wigets to it, such as Checkbox, Dropdown. In this fig, I added a container with 3 Checkboxes. But it didn't display as what I set. As you can see, in the Gui Guider, it pre-displayed as the left one. However, in the simulator, it ran as the right (which worked as I wished).

Besides, I'm using Gui Guider-1.8.1-GA on Windows 10.
Could you please help me find out what happened to this?