Staying on login page after login

I recently transferred in a site to my account. It’s https://vdrforums.org.uk. This was transferred in from a non SSL site using Duplicator (as I didn’t have access to the backend files on the old site, so duplicator was a life saver!). All works fine except when logging in. When logging in to https://vdrforums.org.uk the login works but I remain on the login page. This appears to be due to the return url in the address bar being to https://vrdforums.org.uk instead of https://vdrforums.org.uk. If I log in to https://vdrforums.org.uk/wp-admin the return url is https://vdrforums.org.uk/wp-admin and I get redirected correctly to the wp-admin page.

The url update at the end of Duplicator appeared to work ok, and I’ve resaved my permalinks. I’ve checked through the database for any links to http instead of https but all looks ok.

My .htaccess file is
# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ – [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>

# END WordPress

CheckSpelling Off
AddType x-httpd-php56 .php

Many thanks

Tom

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