Found an abnormal behavior on issues.
Checked in the following demo link http://six.openemr.io/openemr/index.php
Penned down the steps we followed. Kindly check.
1. Clicked Popups->issues.A new Issues and Encounters tab
opens.
2. On clicking cancel,the issues tab stands empty.Again on
clicking Popups->issues, again a new Issues and Encounters
tab gets opened and the existing tabs stands still.
3. On Repeating steps 1 and 2, the issue continues.
Attached the screenshot for assistance.
Thanks,
ViSolve