A slide is missing while running a slide show due to the slide is hidden.
Cause:
The slide is a hidden slide.
Solution:
Click the right mouse button and select 'Go To' then select 'Hidden Slide'.
Slide show menu
1) Right-click the mouse button. (The Show shortcut menu appears.)
2) Select 'Go To'. (The submenu appears.)
3) Select 'Hidden Slide'.
