HI Katie,
Welcome to Adobe Forums!
Under Properties of that click you might have checked "Pause the project until user clicks". So, once the user will click on the click box the slide will progress and should show other objects after that in the timeline, or should go to the next slide.
Please make sure that there is no other click box or interactive object like button or smart shape used as button on that slide (which has a pause enabled until click), or check if there is any action on the exit of the slide.
Thanks.