Strange stains when bake light

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

Image 1: https://forum.unity.com/attachments/upload_2020-10-12_17-34-34-png.715737/

Image 2: https://forum.unity.com/attachments/upload_2020-10-12_17-37-46-png.715740/

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

Image 3: https://forum.unity.com/attachments/upload_2020-10-12_17-42-28-png.715743/

Image 4: https://forum.unity.com/attachments/upload_2020-10-12_17-42-44-png.715746/

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

[preview of external content removed for GDPR compliance as it was including 3rd party cookies]

necroposting here, but this little checkbox ticked helped me instantly: https://forum.unity.com/threads/ugly-spots-and-stains-when-baking-ligths.388795/#post-2531506