A little in the weeds here but wanted to report a bug I have come across several times.
When I open up the label select toggle box and press the down arrow (thinking I can choose between them) it moves the page down and locks it there so that the top section is cut off. I have to refresh to display the page again.
Chrome Version 58.0.3029.110 (64-bit)
When the top gets cut off it looks like this: