Why did the Picture Library Slideshow Web Part stop rotating!?
A familiar functionality of the Picture Slideshow Library Webpart was the "auto rotate through images" feature. This let visitors set an interval for the webpage to automatically cycle through the library images.
In a recent update to Sharepoint Online the ability to automatically switch to new images was deprecated for libraries that do not have a Content Delivery Network (CDN) enabled to help with performance on these pages. This means that the AutoPlay functionality for existing websites will no longer function for Picture Library Slideshow web parts unless the customers sets up CDN for the library.
For guidelines and instructions about how to enable the CDN and create a private CDN, see the following Office Dev Center blog article:
How do I get the Web Part to start automatically rotating again!?
An example of setting this up on a tenant would look similar to this:
- Connect SPO PowerShell Module to the tenant
- Enable CDN on the tenant for Private/Public or Both
Set-SPOTenantCdnEnabled -CdnType both -Enable $true
- Enable the Picture Library to utilize CDN
Add-SPOTenantCdnOrigin -CdnType Public -OriginUrl SUBWEB/PIC LIBRARY
Presto! Your Slideshow should now be automatically rotating again within about 10 minutes!