Plesk Obsidian (18.0.48) - 413 Request Entity Too Large (nginx)

Hello recently I set up a server using Ubuntu 22.04.1 LTS and Plesk Obsidian 18.0.48. However I encountered a problem when uploading files around 1GB of size. The website I am running is a docker-compose project with Python 3.10 as codebase.

I know that this question has been asked already, but for some reason nothing seems to work for me.

What I already tried

• I created a file /etc/nginx/conf.d/aa_client_max_body.conf with the content client_max_body_size 2048m;
• I also tried adding client_max_body_size 2048m; to /etc/nginx/nginx.conf => http (I commented out the content of the other file to prevent misconfiguration errors)
• I created the file /usr/local/psa/admin/conf/panel.ini with the following content

[webserver] nginxClientMaxBodySize = 

• I added client_max_body_size 0; to Domain => my.domain => Hosting & DNS => Apache & nginx Settings => Additional nginx directives
• I added LimitRequestBody 0 to Domain => my.domain => Hosting & DNS => Apache & nginx Settings => Additional directives for HTTP and Additional directives for HTTPS
• I increased the values of post_max_size and upload_max_filesize under Domain => my.domain => PHP Settings both to 2048M

The website is a https subdomain.

Thanks for every help :)