When starting the render, if you disable the albedo map, and render the standard scene, chunky starts by rendering the first SPP of the normal map, but immediately after renders the path tracing scene.
After that, if you render the scene without the albedo map, Chunky starts by rendering the first SPP twice, and then it continues normally.
If you reenable the albedo map, chunky starts by rendering the first SPP of the path tracing render, before rendering the normal maps. Afterwards, if you start the render, it renders the first SPP of the normal map twice before proceeding.
When starting the render, if you disable the albedo map, and render the standard scene, chunky starts by rendering the first SPP of the normal map, but immediately after renders the path tracing scene.
After that, if you render the scene without the albedo map, Chunky starts by rendering the first SPP twice, and then it continues normally.
If you reenable the albedo map, chunky starts by rendering the first SPP of the path tracing render, before rendering the normal maps. Afterwards, if you start the render, it renders the first SPP of the normal map twice before proceeding.