This issue has been raised with Umbraco but looking for an urgent work-aound for this odd bug we're having where BlockList data is missing from the v2 Content Delivery API. This is what happens when we upgrade our project from 12 to 13: - Run our v12 project - View our Block List data in the Content Delivery API (all good) - Upgrade the project to latest v13 - Run the v13 project - The block list data is now missing in the Content Delivery API. UNLESS we publish the node using the 'Save and Publish' button as then the data will re-appear in the API. However we have over 500 nodes and can't manually republish them all. Here's the odd thing, NONE of the below makes the data re-appear in the API. - Rebuilding the API index in the back end (tried ALL the rebuild options from the back end) - Unpublishing all nodes and re-publishing them all using the back office 'Publish with descendents' feature. - Unpublishing and Republishing the node in code What kind of magic is happening when we click the physical 'Save and Publish' button here? !? What does it do that none of the above does? The other thing that works is exporting all the data using uSync and importing it all in again, but alas some of these projects are on Umbraco Cloud and uSync fails when exporting / importing the data (not sure if it's timing out, there's no error) Appreciate any input!