Strange stains when bake light

Hello, community! I have a problem with baking light in hdrp.

Image 1:

Image 2:

As you can see, all objects on the scene have strange stains when I bake light.

Image 3:

Image 4:

If turn off filtering, the result is very bad.
How can I fix it?

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necroposting here, but this little checkbox ticked helped me instantly: