Filerun problem dowloading big files

Whenever I try to download a "bigger" file or generated zip from a folder, the download errors out with "Failed - Network error". I noticed that it fails around 1GB.

Am a bit clueless on how to debug/figure out what is causing this.

My setup is as follows:

cloudflare running my dns, nginx reverse proxy (swag) pointing to the filerun docker container

nginx config

Any insights would be highly appreciated