UE5.6 Packaged build missing Content - ZenStore not writing pak files to staged build

UE 5.6.1
Project on D:, Engine on I:\

Packaging completes without errors but staged build at
D:\BBI\Instinct\Saved\StagedBuilds\Windows\ is missing all game content.
ChaseProject\Content\ folder does not exist in staged build.
Engine\Content\ only contains Renderer, Slate and SlateDebug -
missing Internationalization and all other engine content.

Cook succeeds and Manifest_UFSFiles_Win64.txt lists all content files
but they are not physically copied to the staging directory.

DefaultGame.ini has bUseZenStore=False and bUseIoStore=False but
ZenStore service still appears to be intercepting the cook pipeline
and content is not being written as pak files to disk.

Deleted ZenStore cache and Saved\Cooked\ folder, still same result.
StagingDirectory set to external path but packaging ignores it and
continues staging to Saved\StagedBuilds\Windows.

Has anyone found a way to force UE5.6 to output traditional pak files
and correctly stage a self-contained packaged build?