Sometimes when I'm working on a pattern I'll go to erase a line and it will freeze. After closing and reopening the program I try to erase the same line and it freezes again. It always wants to freeze when trying to remove the same line and I have to leave the line in order to finish the pattern. This is a bother because I need to get rid of that line for the pattern to work properly. Is there a solution or has anyone else had issues?