Hi!
Thank you for reply
I use ver 5.5.3789
On the Partners page I assigned same template as for others.
Tell the truth dont remember exactly steps which cause this, but
1. there was default page "Partners" from "Corporate Site" sites template.
2. then I deleted this page
3. made new one with same name based on my template
This is screenshots with general tab and Page tab (Design tab have same view)
screen1sreeen2