Umbraco 17 pages randomly becoming unpublished / returning 404

justin-nevitech · September 20, 2026, 9:01am

Hi all,

There’s an open issue here:

github.com/umbraco/Umbraco-CMS

Published documents losing their links

opened 12:49PM - 29 Jun 26 UTC

AdamWorley

state/needs-investigation type/bug area/backend category/bug

### Which Umbraco version are you using? 17.4 ### Bug summary Published docum…ents/pages are becoming unavailable, when the "Links" become empty <img width="636" height="272" alt="Image" src="https://github.com/user-attachments/assets/1ef25896-5bb0-463b-bcd9-22e023054800" /> which leads to 404 results when trying to navigate to the page. ### Specifics The issue seems to have started with a recent minor upgrade of umbraco most likely 17.2. It mostly seems to happen around a deployment or when the server restarts in the night through maintenance. The pages that lose the links seem some what random but they all seem to have been published since the upgrade (~20 pages). Saving and re-publishing the page restores the links, but the page link can be lost again in the future. ### Steps to reproduce - Have pages published - Deployment/Server restarts/something else? - There's no longer a link for the page ### Expected result / actual result Expected: Pages don't randomly become unavailable Actual: Pages are going missing

Can you add to that issue as it will help HQ resolve it faster. Any info, diagnostics, details that may help would be useful.

Justin