diff --git a/chain/gen/gen.go b/chain/gen/gen.go
index 1547a9c10..f00de2924 100644
--- a/chain/gen/gen.go
+++ b/chain/gen/gen.go
@@ -535,7 +535,7 @@ func IsRoundWinner(ctx context.Context, ts *types.TipSet, round int64, miner add
 	for _, s := range pset {
 		cr, err := commcid.CIDToReplicaCommitmentV1(s.Info.Info.SealedCID)
 		if err != nil {
-			return nil, err
+			return nil, xerrors.Errorf("get sealed cid: %w", err)
 		}
 		var commRa [32]byte
 		copy(commRa[:], cr)
diff --git a/chain/stmgr/stmgr.go b/chain/stmgr/stmgr.go
index 6bd9de3e7..bef5f00b5 100644
--- a/chain/stmgr/stmgr.go
+++ b/chain/stmgr/stmgr.go
@@ -352,6 +352,10 @@ func (sm *StateManager) LoadActorState(ctx context.Context, a address.Address, o
 
 	cst := cbor.NewCborStore(sm.cs.Blockstore())
 	if err := cst.Get(ctx, act.Head, out); err != nil {
+		var r cbg.Deferred
+		cst.Get(ctx, act.Head, &r)
+		fmt.Printf("badhead %x\n", r.Raw)
+
 		return nil, err
 	}
 
diff --git a/chain/stmgr/utils.go b/chain/stmgr/utils.go
index fef31a844..fb815f77a 100644
--- a/chain/stmgr/utils.go
+++ b/chain/stmgr/utils.go
@@ -272,14 +272,7 @@ func LoadSectorsFromSet(ctx context.Context, bs blockstore.Blockstore, ssc cid.C
 			return err
 		}
 		sset = append(sset, &api.ChainSectorInfo{
-			Info: miner.SectorOnChainInfo{
-				Info:                  miner.SectorPreCommitInfo{},
-				ActivationEpoch:       0,
-				DealWeight:            abi.DealWeight{},
-				PledgeRequirement:     abi.TokenAmount{},
-				DeclaredFaultEpoch:    0,
-				DeclaredFaultDuration: 0,
-			},
+			Info: oci,
 			ID: abi.SectorNumber(i),
 		})
 		return nil