Why does the redirect in .htaccess not work as it should?

Question

htaccess

Good afternoon. Please tell me. I changed the domain of the site. You need to make a 301 redirect. I wrote the following in .htaccess:
RewriteEngine on
RewriteCond %{HTTP_HOST} ^uk-rost\.com
RewriteRule ^(.*)$ build-74.ru/$1 [R=301,L]
RewriteCond %{HTTP_HOST} ^www.uk -rost\.com
RewriteRule ^(.*)$ build-74.ru/$1 [R=301,L]
And it redirects from any page of the old domain only to the main page of the new domain. It seems to be redirecting to the appropriate page. The structure of the site has not changed.

Answer 1

All the same, redirects to build-74.ru/index.php (