Plugin breaks Posts list in the WP Admin dashboard (MAJOR issue)

I installed the plugin this morning, activated it, and added a meta description for my home page. I could see the meta data in the source code, so things looked ok. I then wanted to check the various “Search Engine Optimization” meta boxes below the editor on my posts.

Sadly, the Posts list in the WP Admin dashboard is completely messed up. The post title and other options are listed/written vertically, one letter on each line!

Please see this screenshot of the list of posts in my WP Admin dashboard (Norwegian language): https://prnt.sc/lioigaM2_QHg

When I deactivated Slim SEO, the problem disappeared. I tried to activate the plugin again, change one setting (disable “Image alt text”) and press Save, but the list of posts in the WP Admin dashboard was still completely broken.

Please note:

• I do not use any other plugins except Slim SEO.
• I normally use Firefox, but I also did tests with Safari, both on macOS.
• Logging out and then logging in to WordPress does not resolve the issue.
• I have never had a similar problem before. The issue always appears when Slim SEO is active, and disappears when the plugin is deactivated.
• I have not made any other changes to my WordPress installation lately, except adding Slim SEO.

Any idea how this can be resolved?
I was so happy when I found this light-weight and simple SEO plugin, and I really, reeeeally want to use it.

• This topic was modified 3 years, 3 months ago by yallaman.