[BUG] Installing UWP via MSIX throws: violates pattern constraint of '\bms-resource:.{1,256}'.

Project
MSIX SDK or Win7Msix

Describe the bug
We have daily test runs for UWP test app. In Jenkins job script build a .msix for our UWP test app. But for some reason when msix is installed via vstest.console.exe I get following error. Any insight into what could be causing this error?

If I switch to .appxrecipe instead, app is deployed and run just fine. Something is weird about running .msix. Any help is appreciated.

###ERROR
'PackageName.UWP' violates pattern constraint of '\bms-resource:.{1,256}'.
Deployment operation failed.
Failed to initialize client proxy: could not connect to test process.
Closing app with package full name 'E6DA2210-BF17-46D2-9DBF-E36B22084FDA_1.0.0.0_x64__zy2ctb9gr90we'.

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Additional context
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Start with the Jenkins job script and the vstest.console.exe deployment path, comparing installation of the .msix with the working .appxrecipe. Reproduce the daily UWP test-app run and identify which package metadata triggers the pattern-constraint error; done means the .msix deploys and the test process connects successfully.