Hi HolgrP,
From your post, I understand that when you insert an image or text box in a slide, they don’t show up in your slide (edit mode) but they do appear in thumbnails on the left, as shown below. Correct?
If this is the case and if you think it is because of the master slide, then I’ll suggest you create another master slide and then test further.
For your Reference: Modify a slide master in PowerPoint for Mac
If the issue persists, please provide the following information:
- Please confirm the version and build of PowerPoint app. To confirm, in PowerPoint, go to the PowerPoint menu and choose About PowerPoint.
- Does this happen in all the presentation you created, or it is limited to specific one?
- Since when are you facing the issue? is it after Office update?
Thanks,
Neha