powerpoint issues with slide content disappearing after last animation

drsyed Did you find a resolution?  I just had the same issue.  I suspect but cannot prove) that the problem lies either with a corrupted master slide or with a version conversion from 97-2003 to current pptx.

The only way I could solve it was to create a new text box on the slide, copy the content into the new box, then reformat and re-animate the content.  And finally delete any leftover text boxes.  The reason I suspect a master slide is that every time I removed all existing content from a box I was left with one of those "automatic" text boxes you get with the slide masters.

I do know that the original creator/editor of the presentation typically clicked on 'new slide' to create a new one.  I NEVER do.  Rather I duplicate a slide that is close to what I want and edit the duplicate.  That way I avoid all of the 'automatic' pieces that slide masters impose.

Hope this helps someone.