Hi,
I have an issue with Polygon feature with PictureFillSymbol such as striped , dotted when using FeatureLayer.
(The picture below I tested from ArcGIS Online Map Viewer but got the same issues in my development environment)
This is the correct displayed example when I add whole map service as MapImageLayer. PictureFillSymbol with striped or dotted can display correctedly

However, when I add only sublayer as FeatureLayer , the polygon with PictureFillSymbol with striped or dotted pattern doesn't appear correctly

Do I have to set any properties to make FeatureLayer display correctly? Please help me resolved this.