Problem with master slides in ppt

Copper Contributor

I am a freelancer and I use ppt for my clients every day.
Since 4 days a problem occurred on PPT impossible to find a solution...
Yesterday I sent a message on the Microsoft Chat, but the person did not find where the problem came from.

When I go to "slide master", as soon as I make a modification on a slide and I click on the next one, the slide where I made modifications disappears, without any reason. If I do Com+Z (Mac) it doesn't come back either. And even if I click on one slide and then another the first one I clicked on will disappear.
I have installed, uninstalled, done all the manipulations that your colleague gave me, the problem persists.
Can you help me?

Thank you

0 Replies