"remove /language/ in pretty permalinks" problem

After update to 1.8.2 I begin to have a problem.

When I use “Post name” in permalinks and “remove /language/ in pretty permalinks” my (static) home page in the /en/ version redirects to last post (single) page. When I choose to use “/language/ everything works great.

My site is http://www.alaska.agency

I’m using WP 4.4.2 and Polylang 1.8.4

Any idea?

Thanks

https://wordpress.org/plugins/polylang/