I wonder if someone could assist with section breaks and footers?!

Front page with footer A (portrait)
Page break
Following pages portrait with footer B, (Different First Page option is ticked)

All works fine.
I then need to insert another section break as I require my final few pages to be landscape. When inserting a page break, I can correctly flip these last few pages to landscape. However the landscape page picks up and users footer A from the front page. If I amend this, it amends the front page footer also. I wish to carry on using footer B on my landscape pages, but seemingly cannot! I’ve recreated on a new document and happens consistently. How can I get

Front page with footer A
Subsequent pages with footer B
Carry on with footer B after a section break (required to allow last few pages to be landscape)

Many thanks!