Let's say I have 3 pages. If I insert a section break at the top of the second page (so section 1 is page 1 and section 2 is pages 2-3), there is no issue.

However, once I check the "Different first page" option in section 2, page 2 is listed as "Section 2, First Page" while page 3 is listed as "Section 3." Page 3 should still be included in "Section 2" and checking that option should not create an entirely new section.

Using Linux Mint 18, WPS alpha 21.