Hi @lando365,
In this case, I would recommend that you create a staging site. And in your staging site, you can install a child theme. The staging site is very useful because you can test drive any X updates in the staging area, do the customizations and troubleshooting without disrupting your live site. Once everything is perfect, you can easily and flawlessly proceed the update in the live site. To know how to create a staging area, please check out these articles:
Thanks.
Hi @erikmeylemans,
Please make sure the WordPress Address and Site Address are the same:

If it still doesn’t work, please create a separated ticket and provide us with login credentials(by clicking on the Secure Note button at the bottom) so we can take a closer look? To do this, you can make a post with the following info:
- Link login to your site
- WordPress Admin username / password
Thanks.