A user is displayed two times in a membership list of a Lync Server 2010, Group Chat channel Content provided by Microsoft Applies to: Lync Server 2010, Group Chat Select Product Version All Products Symptoms A user is displayed two times in a membership list of a Microsoft Lync Server 2010, Group Chat channel. This issue occurs when the following conditions are true: A child domain or a child group is added under the Scope tab in Group Chat Administration Tool.The user who is displayed two times in the membership list is a member of both the parent and child group, or the parent and child domain. Cause This issue occurs because a procGetExplicitRoleList stored procedure is mishandled. The stored procedure is used to pull the membership list for a specific chat room. Resolution To resolve this issue, install the following cumulative update:2514984 Description of the update for Lync Server 2010 Group Chat: November 2011 Last Updated: Nov 19, 2011 Can't find what you're looking for? Search No results Did this solve your problem? Yes No Tell us what we can do to improve the article Submit Thanks! Your feedback will help us improve the support experience.