RobotStudio event

HotEdit of position array

I recently tried to use the HotEdit screen in the flexpendant to adjust positions in an array containing ten positions. But for some reason it would not let me access the array. After a lot of testing I finally managed to get HotEdit to allow me to adjust positions in an array but only if the array contains five or less positions. Is this a problem with robotware or is there some something I am missing? Robotware is RW 5.12. Any ideas welcome.