if i delete my current polylang, and install the new plugin you sent instead to test custom menus, will it keep all my settings (languages, menus, translations of sentences) in the database?
for the second problem (blog page displaying all site pages), it is solved by https://www.ads-software.com/support/topic/blog-lists-all-posts-doesnt-filter-by-language?replies=2#post-3773039
thanks