BUG: Standard Header editor edits the character before the one you your cursor is on its out by one

Not sure if this is the place to report bugs but apologies in advance if it isnt. Latest version of Xamarin installed on my Macbook Air. Was trying to add a standard header, selected a license from the drop down and started to edit it. The editor was out by one character i.e. editing was editing the character before the one my cursor was on which made editing the header really painful.