Error while scrolling popup_infoballoon

Error while scrolling popup_infoballoon

  
Hi, when I click on the scroll bar in the infoballoon the infoballoon closes.
I am using 5.1.1.31 service studio and service center.
The RichWidget version is 5.1.11
If I set compatibility view it works (I can't ask the users to do it though)
Thanks in advance