Thank you for your comment.
Do you mean that the game does not start even when you press the Start button?
When switching to full screen, the Start button should appear as shown in the image.
However, depending on the screen aspect ratio, it may not be visible.
We are currently working on a fix so that the Start button will be displayed correctly on all screen ratios as soon as possible.
If the Start button still does not appear even after changing the screen ratio, we would appreciate it if you could leave another comment.