Can't upload big file

[UnWaDo]

When I'm trying to upload file greater than 20 KB to Nextcloud storage, it is uploaded as an empty file

Previously I used webdavclient3 and it worked fine. The problem persist on Windows and Cent OS machines

[UnWaDo]

Seems to be a problem with aiofiles: when I change async with aiofiles.open(local_path, "rb") as local_file: to synchronized version with usual open, it loads file just fine

As I'm not very good neither at aiohttp nor aiofiles, I would be grateful for support in what can be wrong, maybe I would be able to fix problem myself with a bit of advice