What happens Is rhat you're clicking on the area containing the spaceengine logo, which by design is opening the credits feature, and it's superimposed to the Continue button. Probably because you're using a window height or fullscreen of about 720 pixels and the interface is optimised for 1080 pixels. Click on the far left of the Continue menu voice in order to reach the area of that bitton, or use a higher window if you can
Thanks, that fixed it (increasing the window size)! I was confused as this just started happening a few weeks ago.