In my custom ontology branch I have a set of 4 leaves in a folder. The leaves are "distinct" for each patient. The totalnum patient counts on the 4 leaves in my test database are as follows: 1, 3, 1, (blank). The counts on the first three leaves is accurate for the 5 patients in my test database.
The fourth leaf's count being blank is puzzling, though, because there were 0 patients matching that leaf. Why is it blank instead of showing a count of zero? Is this an anomaly, or am I missing something?
Please see attached. Thank you!

In my custom ontology branch I have a set of 4 leaves in a folder. The leaves are "distinct" for each patient. The totalnum patient counts on the 4 leaves in my test database are as follows: 1, 3, 1, (blank). The counts on the first three leaves is accurate for the 5 patients in my test database.
The fourth leaf's count being blank is puzzling, though, because there were 0 patients matching that leaf. Why is it blank instead of showing a count of zero? Is this an anomaly, or am I missing something?
Please see attached. Thank you!