IPSec Tunnel Interface Link showing down, but its working.

I recently updated my Fortigate 100D devices to 5.6.2

I have 3 sites, each with a Fortigate 100D and each with a IPSec Tunnel to the other 2 locations.

All traffic is traversing normally, however when I look at Network->Interfaces, one locations Tunnel Interface Link Status is showing down.

So, when I am on Site 1's Interface Link Status, it is showing as DOWN to Site 3, Same with Site 2 to Site 3. And from Site 3, its showing DOWN to Site 1 & 2. 

Now when I look at VPN->IPSec Tunnels all statuses are showing as UP.

The only reason I'm asking this is because when I'm looking at my IPV4 policies, I'm getting a warning to those polices dealing with Site 3 and so on. 

I've check all Phase 1 & Phase 2 settings, everything is perfect there. As I mentioned, all traffic is working perfectly, I just want to make sure that all errors are cleared up. Thanks so much!!