When I edit polygons in a portal hosted Feature Service using Split, it appears to randomly create table records with no feature geometry in addition to performing the normal task.
Would you say that this thread is dealing with the same issue?
https://community.esri.com/message/940960-pro-252-polygon-splits-create-null-geometry-records
Hey levesqueaj!
This article may be helpful, perhaps its describing a similar issue - Problem: A polygon split outputs polygons with null values in the attribute table in ArcGIS Pro
