saguaros Thank you for your answer. What do you mean with "old URL"? Anyway, it looks like the system creates new URLs with each username for each category using the "Author Listing" feature.
https://mels.club/home/author/tomzon
I had created a user account for you and so also with your username for each category a new link (URL) was created. https://mels.club/home/author/saguaros
https://mels.club/kochen/author/saguaros ...and so on!?
How to remove automatic author blog
Let me check if I can replicate this issue at my end and get back to you.
7 days later
saguaros Hello saguaros, please do not forget me 
thomas-engelns I can't replicate at my end, let me check with team and see.
12 days later
saguaros Hello saguaros, I know you must be busy with the introduction of Joomla 5, but could you please have a look at my problem? That would be really great
thomas-engelns Could you backup your site and install the latest version of T4 plugin? https://www.joomlart.com/member/downloads/joomlart/t4/t4-framework
saguaros Backup and Updates are done. Thanks 
a month later
saguaros Backup and Updates are done again.
You mean that it still generates these author path for the new user?
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7 days later
- Edited
thomas-engelns
Hi,
Kindly try this package and let me know the result.
Regards
https://drive.google.com/file/d/1XrSayJxausQdmgQgQ986VngVhB5BzfrA/view?usp=drive_link
You guys are really amazing!!! Thank you very much for your efforts and the excellent solution!
But two questions remain:
- do I have to install the package again after a T4 update?
- will this solution be included in a future update in the Ja_coach template or T4 framework?
Best regards
thomas-engelns
Hi,
This feature will be included in the next T4 release. All T4 templates will be affected when you upgrade T4.
Regards
That sounds nice, thank you very much for your great work. Many greetings and all the best to you and your team for the new year!
supportguy locked the discussion.