I think you are right it could be some material passed thru the filter(may be). No, I didn't use frozen flowers instead I bud washed the freshly harvested plants (in Baking soda & lime water) and dried them for couple days and then prepared the oil.Seems like the ss cup was on half the heating element and half off? The separation; seemed perhaps some material got through the filters? Excessive chlorophyll, plant wax? At the end of the decarb I take a cuticle pusher and stir to mix the top and bottom of the oil. Did you do a quick wash with frozen flowers?
Now I have mixed that green material with rest of the oil still I can see the diff. Was it ok to mix ? else I can still try to remove the green part.
And by the way whats the idea behind stirring top n bottom of the oil.? For got mention I got around 10 gms of oil.