Recently, my client's hosting provider migrated http://kastenhandelaars.nl to http://indoorhomeline.nl. (both Wordpress websites) Appropriate redirects were placed and we changed the homepage.
Although after the migration, I'm experiencing a rendering issue in Search Console. Google still renders the old domain homepage without the CSS. This old homepage was also migrated to the new domain, but we selected another page after the website migration.
The fetch and html response also shows the old domain
What do I need to do to fix this problem? Or what does the hosting provider need to do to resolve this?