Hi @shockoMS
1 If OneDrive use Windows Primary Account to sign in automatically without user interaction, SilentAccountConfig works correctly.
But if you have enabled MFA, then it won't work. The following image is from "Enable silent configuration" part.
2 According to "Prerequisites", Hybird AzureAD (Microsoft Entra hybrid) joined devices are supported.
3 Please make sure the MFA is disabled first, then follow the steps of "Verify that Single Sign On (SSO) is working" to have a check.
For any further assistant, it would be best to open a support ticket with Microsoft Support to help review your issue and help you test remotely. As you are working with a complicated scenario, and this could be due to many reasons.
Thanks for your understanding.
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