Sonarr V4 failed import System.IO.IOException: I/O error

Sonarr version (exact version): Linuxserver version - sonarr:4.0.4.1491-ls235
Mono version (if Sonarr is not running on Windows):
OS:
Debug logs:

Description of issue:

After upgrading to V4 Sonarr can no longer import files. It can correctly find and download them but fails importing them, even manually. It’s also giving an I/O error but with no description.

I did end up working this out. Basically copy didn’t work only hardlinks. So I worked out my hardlink issues and that solved my problems.