Busy search range in admin console will not increase above the default of 7 days

In the admin console at the Domain, Post Office or User properties | Client Options | Calendar | Busy Search | modify the SearchRange above the default 7 days and save the change, it appears to save. You can even lock the setting if you want.

Exit the Client Options window and open again, notice the setting has reverted back to the default 7 days.

Modifying the same setting in the GroupWise client works fine in both versions. The issue is only with the admin console.