Hide numbering in Heading 1, only

I need to have a strange chapter and paragraphs numbering:
Heading 1 (Chapter Title) must NOT contain numbers
Heading 2,3,4 must contain the Chapter number and the paragraph number.



1.1 Paragraph Title

I tried to set the numbering for Heading 1 to None and then, the chapter number was not present at Heading 2, 3,4.

These are some places to check:

in heading 1

in heading 2

in selected numbering style for heading2

-right indent the heading2 once