How can I stop the progression to the next slide?

Hello,

I want that there is only one way to get to the next slide: by using the button or click box (I tried it with both) at the right side of the page. I added a click box and chose the option "stop until user clicks" (the wording may vary as I'm using Captivate 10 - 2017 in German). The click box appears after 1,7 seconds and pauses the project. But when I click two times in the middle of the slide it moves forward to the next slide. This happens on sites with drag-n-drop and on normal sites (only text).

I did not find an answer for this problem. The project is a power point import, unfortunately I cannot remember if I chose the move forward automatically or by clicking.

Maybe someone knows what to do!?

Best regards

Claudio

(I'm using Captivate 9 and released the course in moodle)