Images in scrolling panel go invisible

Hello Ila, 

Thanks for reaching out! 

After checking the images in your slides, I found that some of them may have gotten corrupted, indicated by images that have a 0x0 resolution in the Media Library:

Please try replacing these images with ones that have a recognized dimension attribute and let me know if this fixes the issue. 

For your reference, you can check out this article which lists some tips on how to lower the risk of encountering corruption in your project file: 

• Follow These Tips to Reduce Your Risk of Corrupting or Losing Project Files

Let me know if this works for you!