Layers and Feedback Masters

I'm developing a template in Storyline 360 and going crazy trying to understand the link between Feedback Masters and layers in ordinary slides. It appears that every time I add a layer to any slide (not a quiz slide, just an ordinary slide) that new layer draws from a Feedback master slide. That's not at all what I want.

How can I separate the two, so that when I create a new layer it's not throwing one of the Feedback Masters onto it as well?

Thanks!

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