link to an example please?
https://forza-bvb.de/topics
language switcher is in the footer
I did set it up correctly, you wish i can give you a admin access to the site, it is only a test site because i have the same Problem on my Main page. I thought it was due to customizing but seems to be another issue.
sorry, I’m just a free volunteer, I generally don’t have the time to look at individual problems, and this seems to be specific to your site.
I am suspicious that it might be caching software – can you confirm that neither your site or hoster use this, or if they do as a test disable.
I would also try
dashboard>settings>permalinks and just click save – this resets the permalinks and may help
Then I would do the following
it could be a theme or plugin issue
Themes
As a test switch to a default theme such as twentytwenty, and see if this fixes.
Plugins
If that doesn’t work, also deactivate all plugins apart from bbpress and see if this fixes. if it does, re-enable one at a time to see which is causing the error.
If you cannot do this to your site (say because it is live) then use the ‘troubleshooting’ features of this plugin to let you test without affecting other users
Health Check & Troubleshooting
Then come back
I did the permalink save thing, i used different themes.
WPML also investigates as they could reproduce it.
https://wpml.org/forums/topic/topic-archive-page-of-translated-sites-donw-show-any-topic/
I read that but you actually can translate them and the last response was
“Thank you, I was able to reproduce this behavior on a sandbox as well.
I am currently discussing this with our team and will update you once there is news.”
great – thanks – please post back if you get further news