Incomplete downloads without any error

[gsportelli]

Describe the bug

I'm connected to a remote drive via SSH. When I copy a file from the remote mount point to a local directory, sometimes the file is copied only partially without any error. This happens randomly and in a way that if you don't control file sizes, you might think that the file was copied successfully but it wasn't.

If you try to copy the file again from the remote mount point to the local directory, the file is copied exactly in the same way, i.e., incompletely to the exact same size (lower than the original one). I can't exclude that in the meanwhile a network disconnection might have happened.

This bug hampers severely the app usability, because I don't trust it anymore. Should the app do some for of check after each download?

To Reproduce
Steps to reproduce the behavior:

1. Mount a remote SSH directory
2. Copy a file to a local directory
3. (maybe?) simulate network unstability

Expected behavior
I would expect the file to be copied correctly or not copied at all if a network error happens or a big warning, or a file rename if copy didn't complete succesfully.

Desktop (please complete the following information):

• OS: MacOS 14.6.1 (23G93)
• Version: Mountain Duck Version 4.17.1 (22545)