Date slicer cannot update in App

Hi gy_1982 ,

Please check you have updated the app successfully.

After you publish your app, you may want to change or update it.

1. Open the workspace that corresponds to the app. If you're a workspace Admin or Member, you can also open the workspace right from the app, by selecting the Edit app pencil.
2. Make any changes you want to the content of your app.

The workspace is your staging area, so your changes aren't live in the app until you publish again. This lets you make changes without affecting the published apps.

 Important

If you remove a report and update the app, even if you add the report back to the app, your app consumers lose all customizations they've made, such as bookmarks, comments, and so on.

1. Select Update app in the Workspace content view.
2. Update Setup, Content, and Audience, if you need to, then select Update app.

The people you've published the app to automatically see the updated version of the app.

More details:Publish an app in Power BI - Power BI | Microsoft Learn

I have also found a similar post, please refer to it to see if it helps you.

Solved: Power App data not updating in Power BI App - Microsoft Power BI Community

Please check if the date slicer is changed in the report.

Best Regards
Community Support Team _ Polly

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.