Layer to kml does not export all features

[nabaz-gharib]

OS: Windows 10

App: ArcGIS Pro 2.8.3

I have a polygon layer, I wan to export  it as kmz, when I use the tool, it works without any warning, but when I open the kmz file in google earth pro, some features are displayed s as label, no polygon.

I opened the kmz in ArcPro or even QGIS  but I notice some polygons are missing.

I tried several time but the issues still exist.

I exported same layer to kml using QGIS, all feature are exported without any issue. That means nothing wrong with the layer.

Note: my layer contains sjut single part polygon.

Has anyone faced this issue.

Layer exported from ArcPro

Same layer exported from QGIS

[Robertson_Katherine]

I am having the same issue in Pro 2.9.5.  The Layer to KML tool results in missing features when run on an enterprise geodatabase feature class.   (Strangely, each time I run the tool on the same feature class the kml has fewer and fewer features.)  I exported to a file geodatabase and ran the repair geometry tool (there were a few self-intersecting polygons).  Created a KML from the fgdb and all features were included.  But when I copied from fgdb to egdb and created a kml from this new egdb feature class, the result was missing records.