What's your process of moving the wort to the FV? Bearing in mind if you're going to use a kettle fining, the idea is for the cold break to settle out and to be left behind in the kettle, so if you've poured all of your wort in to the FV, you've included all break material which might be what you're seeing here.
I use a counter-flow chiller so all the cold-break gunk ends up in my FV. It does actually resemble a more 'strung out' version of the OP's, but it sinks to the bottom pretty quickly and stays there.