Allow log on through Remote Desktop Services GPO Error

Hi,

I have a problem with the 'Allow log on through Remote Desktop Services' gpo.

From the DC the gpo seems to be fine but when I check the same in a server client I see the following:

and inside the gpo:

Due to that problem I cannot connect with RDP using some of the gpo accounts. It seems that something happened in the gpo, maybe the missing SID of the picture, and since then the added accounts cannot use RDP.

I have tried to remove a server client of the domain and add it again and, the gpo is fine for a while but after several hours I have the same.

Can anybody help me?

Thanks in advance.

Regards.