High CPU usage of hamachi-2.exe unless I suppress a client of the group

Hi,

I have many hamachi network groups with more than 150 clients.

On two of my office computers (Win 8.1 x64 , hamachi 2.2.0.410) I remark very high CPU usage. When I remove a certain network group from these computer everything runs fine again. At the end I remark that I've just to remove one precise computer from this group to resolve the problem. If I put this computer in another group my CPU comes in high usage again... I tried to reinstall the hamachi client, go back to old versions, the problem is always here.

Is there a new bug with hamachi 2.2.0.410 ? Have you an explanation to this problem ?

Thank you.

Best regards