Hi, when using the GPO's in WEM after some time I keep getting this error: Unable to show settings configured in this GPO due to an error. The settings you configured will still function normally. However, if you edit this GPO, those settings will be lost. When editing the GPO all older settings get lost.

Are all the admx and adml files still loaded in WEM?

yes, I can still edit the GPO and then I see all the options