SYMPTOM:
When executing a report in Funnel graph view in Strategy Developer, it only displays a maximum of 16 categories.
STEPS TO REPRODUCE:
Follow the steps below to reproduce the issue in the Strategy Tutorial project:

CAUSE:
This is a known issue in Strategy Developer.
ACTION:
Strategy will continue to investigate and post updates as soon as they are available.
WORKAROUND:
Change the graph series by clicking the button "Set Series by Row" at the top right of the menu bar.