Heatlayer radius over 80 creates strange object outside default heat

[mateuszrusyn]

If I create heatlayer with radius over 80 it creates valid heatmap but outside that circle, something strange appears.

Code:

var heat = L.heatLayer([], { radius: 80, minOpacity: .6, opacity: 0.8, blur: 100, gradient: { 1.0: color, }, }); heat.addTo(mymap);

It seems that bigger radius than some value is creating second object(?) outside default heat circle.

[corrigancd]

Have replicated this (top image). When I zoom out, it's fine. The parameters required to make each map are also specified: