After you install the November 2015 cumulative update for Skype for Business, you join a meeting on the Skype for Business for Crestron RL, Polycom CX8000, and SMART Room System device (KB 3108096). A remote participant then begins an instant message exchange. If a series of messages is sent by the same participant within about one minute, only the first message is displayed.
To work around this problem, the remote participant should wait for about one minute before sending the next message.
Article ID: 3116149 - Last Review: Jan 19, 2016 - Revision: 1