If on the login screen (after entering login and password) someone is making multiple cliks on the login buton - then few session is opened in the nuBuilder.
This probably can be prevented in nucommon.js file by modifying nuLogin function specifically the code for buton:
Code: Select all
<input id='submit' type='button' class='nuButton' style='margin:20px 0px 0px 50px;width:90px;height:30px;' onclick='nuLoginRequest()' value='Log in'/>