Hello, I has same scenario. I trying load about 2 thounds polygon on feature layer via source property and i need frequently switch some polygons to another polygons. I found if i use same feature layer then call applyEdits to delete/add polygon, sometimes some polygon is keep on screen(should be disappeare). Then i try delete whole feature layer then recreate new, it look like cause memory leak and many console warning "WARNING: Too many active WebGL contexts. Oldest context will be lost."
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