DLP Policy Tip Stopped Working in SharePoint/OneDrive

Greetings,

I created a DLP policy in Microsoft Purview several years ago to display a policy tip to users and it has been working until recently. No changes have been made to the policy. Now, when I go to a SharePoint document library, whether I hover on a sensitive document to see the "View policy tip" or select on the details pane, I no longer see the policy tip information. If I try to share the sensitive document, I also see the "View policy tip". However, this time it shows a Policy tip details dialog box "Policy tip couldn't be displayed. Please try again." Has anyone seen this? Could you share the solution to fix it? Thanks!