Publishing widgets only displays the first metric rather than all the metrics that are in the report. This means having to un-necessarily create individual reports/widgets for each metric (and not great from a user/reporting pov either). eg .. a report with Page Views and Uniques will only show Page Views when published using publishing widget.
from engineering ..
"Currently publishing widgets only support a single metric (regardless of the report) as they were originally designed to work on mobile devices and were limited to a single metric.
As such the ability to have a publish widget with more than 1 metric would need to be requested as a new feature for publishing widgets "
