Wow, nice find! It's a really important bug. How I had never tested this before?! 😆
BUG: Do not download files
File = 1,69 MB
Have you tried changing the client_max_body_size in nginx?
Even though the default is 2MB, the actual data being transferred may be over that for the file you are uploading. Try 4MB.
@yariplus ha-ha, yes. It was in this. Now everything works fine, thank you!