to reproduce it
1.paste it P-:P-:P-:P-:P-:P-:P-:P-:P-:P-:P-:P-:P-:P-:P-:P-:P-:P-:P-:P-:P-:P-:P-:P-:P-:P-:P-:P-:P-:P-:P-:P-:P-:P-:P-:P-:P-:P-:P-:P-:P-:P-:P- into shape viewer
2.close the page of shape viewer
3.open the shape view again, the shape will not show
if click on the area of input shape code, the code will show again