Hints not being created

[Gil Ganz]

Hey
I have a cluster, 3.11.9, in which I am enabling hints, but it appears that
no hints are created when other nodes are down.
I can see that hints are enabled by running "nodetool statushandoff", and
gc_grace_seconds is high enough on all tables, so I'm expecting to see
hints being created, since there are writes constantly coming, but nothing
is being created.
Any ideas?
Gil