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Event ID 1000 is logged and Lync 2013 (Skype for Business) client crashes when you reconnect a remote session
Content provided by Microsoft
Applies to: Microsoft Lync Server 2013Skype for Business
You disconnect and then reconnect a remote session to a Remote Desktop Server computer that's hosted in Citrix XenDesktop 7.6 (for example, by locking and unlocking your computer screen). In this situation, Microsoft Lync 2013 (Microsoft Skype for Business) may crash. Additionally, the following event is logged in the Application log:
This issue occurs because some code elements that used to check NULL device pointers are missing from the current file.