When attempting to filter RemoteApps, error converting the SDDL-format security descriptor for resource %2 to a binary-format ...

When attempting to filter RemoteApps, error converting the SDDL-format security descriptor for resource %2 to a binary-format security descriptor. Log onto the Remote Desktop Session Host server and re-create the resource's User Allow List in RemoteApp Manager. 

Security Descriptor: %3 

Error Code: %1