CDN Requirements for the Slideshow Web Part?

Hello Marc,

We apologize for the issues you were facing where the Picture Library Slideshow web part was not displaying images when no toolbar was specified for display.  We’re now rolling out a change to fix this issue in the next few days, so that an image will be displayed.  You can see updates around this via SP101452 on the Service Health Dashboard in the Admin Center.

Regarding autorotation and the content delivery network requirement – with the volume of imagery and content served through picture libraries, and with the recent roll-out of CDN support for libraries, some image libraries might be good candidates for use https://dev.office.com/blogs/general-availability-of-office-365-cdn.  Updating the picture library slideshow web part to look towards CDN usage for autorotation functionality was a step towards improving performance across SharePoint sites. As you note, configuring a CDN does require some Powershell to deploy – we definitely take the feedback here and will look to consider improving the ability to turn on CDN functionalities for libraries.

Thank you for the feedback here around the Picture Library slideshow web part.

-- Mike