FeatureLayer using the HeatmapRenderer does not honor the layer order when overlaid with another FeatureLayer.
Last Published: July 30, 2015ArcGIS Web AppBuilder for Developers
Bug ID Number
February 5, 2015
December 1, 2020
ArcGIS Web AppBuilder for Developers
After review by the development team, it has been determined that this issue is related to a known limitation with the software that lies outside of Esri's control. The issue's Additional Information section may contain further explanation.
This is by design with 3.x, and expected to be addressed with 4.x.
Using ArcGISDynamicMapServiceLayer with Featurelayer, use the HeatmapRenderer to make the FeatureLayer (heatmap layer) appear on top.