Driver Signing Fails at end scan phase

NTDEV
1

While submitting drivers I am suddenly getting this error:

Scanning Notes
{"code":"4001","details":{"errorInfo":"BlockingDetectionFound"},"innerError":null}

Our EV certificate is good. Packages I submitted before (.cab) fail.
I resubmitted the signableFile.bin with the EV certificate on the Hardware signing site. No change.

I tried signing a small driver from the Windows-driver-samples-master\usb\kmdf_enumswitches and submitting the .cab package.
It fails exactly the same way.

When asking for tech support I found this message:

We were unable to find an eligible support plan associated with your account. Please add a support plan from the options below.

You are currently signed in using an Azure Active Directory account. The purchase of Professional Support plans must be made using a Microsoft Account. To learn more about this process, please click here.

What I need is the easiest way to resolve the problem. I am helping you can tell us what to try.

2

With a lot of help from IT we came up with a solution that worked.
Needed the sample usb driver to figure it out because it is small.
Seems we needed sha384 and removed the coinitializer.dll we always shipped with.
OSR thank you for your site.
I was doing a lot of reading here on your site.

Jamie

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