There is a bug when trying to download mods manually on the mod portal seemingly after an update (that's most welcome !)
Exemple on : https://mods.factorio.com/mod/yaiom uploaded recently
Go to download tab, pick any version, get a 404 on the download URL :
https://mods-data.factorio.com/download ... 1516220435
404 Not Found
nginx
[Mod Portal] Mod manual download 404
Re: [Mod Portal] Mod manual download 404
Just tried to download the mod from the ingame brower it fails aswell with a notice popup "download failed"
Re: [Mod Portal] Mod manual download 404 (fixed)
it works againt, thanks !