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From the Huge thread above it seems to be the fix. But that is based on the folks that tested it.

Seems like the docs got an update regarding the regkey: Fixed issues | Citrix Virtual Apps and Desktops 7 2209 • VDA for multi-session OSSession Manager terminates session launches when the Group Policy evaluation fails. This is to prevent user access to resources that are restricted through Group Policy. The following user-implemented fix provides a registry toggle for administrators to dismiss the enforcement, which helps end users to connect to sessions even if the Group Policy evaluation fails: HKEY_LOCAL_MACHINE\SOFTWARE\Citrix\Ica\GroupPolicy Name: EnforceUserPolicyEvaluationSuccess Type: REG_DWORD Value: 0 (enables the current fix)