Missing Data in Export from iPhone Health App

Exported all my data from the Health App on my iPhone and some of the data appears to be missing. For medical reasons I am tracking “Hot Flushes” because they are a known side effect of some of my medication, However, when I look at the XML generated in the export the records for Hot Flushes (HKCategoryTypeIdentifierHotFlashes) have no data for the severity of the Hot Flush — these can range over five values (Not Present, Present, Mild, Moderate, Severe).

As a long shot I wonder it anyone else has encountered this problem and if so how to fix it.

Should say this is with iOS 16.6.1. Maybe it will be fixed in the up-coming 17.