ls hangs due to wrong symbolic link

Issue

Experience behavior when going to /data/20/incoming .. when ls is typed it just hangs for just this directory. Every other directory lists when ls is typed.

The directory is actually a symbolic link on the brick:

# ls -l /data/20
lrwxrwxrwx 2 300 300 18 Jul 5 2016 /data/20 -> /data/20_C

/data/20_C is present

# ls -l /data/20_C
drwxr-xr-x 215 300 300 8192 Jul 20 2016 20_C