Load runner Controller 12.55/12.57 Bug


hi Guys

I've noticed this minor bug in the latest LoadRunner versions 12.55 and 12.57, the issue is when I add a script having special characters in the name as a group in Controller. I get the following error message see the screenshot "SC1" and could not add script. but when I try to add the same script from the drop down in the controller, it does not give any message and script is added, so can anybody confirms if this is the same case with you?  or just issue with mine.