IUX Update (VAF)

What application is this?  If it's associated with a VAF Application then you can see this by opening M-Files Admin, right-click on the vault and select "Applications".  "UIX" should then be shown in the list, nested under the associated VAF application.

Might it be the User Lite?

Regardless: the application needs to be updated so that it's fast-browsing compatible.  You may be able to simply request an updated version from whoever built that application.  If you built it then you'll need to make changes as per that documentation.

Thanks Craig,

The issue was actually about fast-browsing compatible.  !