Issue: Invite More People shows blank windows in Lync 2013 and Skype for Business 2015 client.
Error message: No error message.
When you click on ‘Invite More People’ in IM conference or Meeting you may see Blank window where you cannot add participant to existing conversation. This is because of the DPI (Dot Per Inch) display setting of your computer screen.
In order to see correct display to use ‘Invite More People’ feature you have set display setting to 100% not more than 100. Microsoft knows this bug and they are correcting this bug in upcoming updates.
Resolution / Workaround:This is bug which Microsoft working on it.
You can use workaround as below.
1. Open Display (Search ‘display’ or open from control panel).
2. Select ‘Smaller – 100%’ and click on ‘Apply’.
3. Now you must log off your computer to apply these changes.
After restart open Lync 2013 or Skype for Business 2015 client and use ‘Invite More People’ feature.