Storage Spaces 2012R2 not automatically rebuilding.

I have two clustered nodes accessing a shared Intel JBOD.  In the JBOD I have 4 SSD's (200GB Each) and 8 HDD's (300GB Each).  I created two virtual disks (CSV1, Mirror, Fixed provisioning, 1.25 TB).  I also have a small Quorum Virtual disk (CSV1, Mirror, Fixed, 6GB).  Everything works perfect and the cluster passed the validation.  All hardware is on the supported list including the drives.  If I physically remove a drive the storage pool will show as degraded and both virtual disks will show as incomplete (as expected).  Everything continues to function normally.  My problem is that an automatic parallel rebuild never takes place.  I have 381GB of free space on the pool which is larger than any of the physical drives.  I set the RetireMissingPhysicalDisks flag to Always which I understand should set the missing drive to retired and cause a rebuild of the space.  If I slide the drive back in everything goes back to healthy.  If there anything else that needs to be set to get the space to rebuild on its own? 

ObjectId                          : {1}\\Snowball\root/Microsoft/Windows/Storag
                                    e/Providers_v2\SPACES_StoragePool.ObjectId=
                                    "{a63c5689-b1ef-41f7-b772-f001c4b2c1a3}:SP:
                                    {4095f566-b8d9-11e3-8130-a0369f3308c2}"
PassThroughClass                  :
PassThroughIds                    :
PassThroughNamespace              :
PassThroughServer                 :
UniqueId                          : {4095f566-b8d9-11e3-8130-a0369f3308c2}
AllocatedSize                     : 2782065065984
ClearOnDeallocate                 : False
EnclosureAwareDefault             : False
FriendlyName                      : StoragePool1
HealthStatus                      : Warning
IsClustered                       : True
IsPowerProtected                  : False
IsPrimordial                      : False
IsReadOnly                        : False
LogicalSectorSize                 : 4096
Name                              :
OperationalStatus                 : Degraded
OtherOperationalStatusDescription :
OtherUsageDescription             :
PhysicalSectorSize                : 4096
ProvisioningTypeDefault           : Fixed
ReadOnlyReason                    : None
RepairPolicy                      : Parallel
ResiliencySettingNameDefault      : Mirror
RetireMissingPhysicalDisks        : Always
Size                              : 3191160700928
SupportedProvisioningTypes        : Fixed
SupportsDeduplication             : False
ThinProvisioningAlertThresholds   : {70}
Usage                             : Other
Version                           : Windows Server 2012 R2
WriteCacheSizeDefault             : Auto
WriteCacheSizeMax                 : 107374182400
WriteCacheSizeMin                 : 0
PSComputerName                    :
FileSystem                        : Unknown