Certain visualizations allow users to show/hide data labels based on the label's value via a field called Minimum threshold to show data labels.

The increment for this field is set to 0.01. This seems like a fine increment, however it does not work well when an underlying data uses numbers rather than percentages.

In the case of a particular user, this user wanted to use the threshold so that numbers rounded down to 0 would not show.

SInce the user's underlying data was not percentages, the increment of 0.01, effectively this meant the user could only show labels that were less than 1%.