TL;DR — Select "NONE" in the print dialog setting for margins (previously, "DEFAULT" was used).
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What Happened
Google Chrome changed how it renders page print views. To account for this, we've replaced the label templates with new versions that do not use the default page margins set by the browser.
The new label templates will be selected by default. Note that when printing, you will need to select "NONE" in the print dialog setting for margins (previously, "DEFAULT" was selected).
If you're still on an older version of Chrome, the prior label templates may still work for you. They can be accessed from the Label Type drop down under the "(legacy)" headings.