On March 24th we shared in an announcement in the M365 message center (MC207439) details around temporary adjustments we are making to select capabilities in SharePoint Online and OneDrive.
During these unprecedented times, we are taking steps to ensure that SharePoint Online and OneDrive services remain available and reliable for your users who depend on the service more than ever in remote work scenarios.
Note: These temporary feature adjustments may be in place during business hours in your tenant's region.
Content migration, Data Loss Prevention (DLP), and backup solutions
Many SharePoint Online and OneDrive customers run business-critical applications against the service that run in the background. These include content migration, Data Loss Prevention (DLP), apps that scan the service and backup solutions. In support of the objective to remain highly available, we are moving some operations to regional evening and weekend hours.
Users may observe:
Please review the relevant best practice guidance, which describes how to get maximize throughput.
Various background processes to manage new media (images, videos) may now be processed during evening and weekend hours.
Modified processes include:
Customers who use OneDrive Files On-Demand and choose to “display items by using large thumbnails” in Windows Explorer or Mac Finder will see generic icons instead of thumbnails.
Note: Photo file thumbnails (jpeg, jpg, png, etc) are not affected by this change.
The affected thumbnail types are categorized as the following:
There is no workaround, we will continue listening to feedback and iterate on this approach.
We will provide further updates to this post as the situation may change.
Last article update: 04/13/20
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