Web Map Label behaves differently from ArcGIS Pro

[TylerT]

Hello,

I have a polygon label that behaves just fine in ArcGIS Pro, specifically with regard to NOT repeating.  I only need one label.

However, once the Map is Shared as a Web Map and viewed in the Portal several of the features have duplicate labels at various zooms.  Has anyone else experienced this, and is there another setting I'm overlooking to suppress this behavior?  

Thank you,

Tyler

ArcGIS Pro 3.2.0

Enterprise 11.2