diff --git a/common/config/config.go b/common/config/config.go
index a3f545051..a34b9d481 100644
--- a/common/config/config.go
+++ b/common/config/config.go
@@ -194,6 +194,7 @@ func GetDefaultParams() *Configuration {
 			CandidatesCount:                   72,
 			DPoSV2RewardAccumulateProgramHash: StakeRewardProgramHash,
 			NFTStartHeight:                    1405000,
+			DPoSV2SortVotesHeight:             1415500 + 720*15,
 			OriginArbiters: []string{
 				"0248df6705a909432be041e0baa25b8f648741018f70d1911f2ed28778db4b8fe4",
 				"02771faf0f4d4235744b30972d5f2c470993920846c761e4d08889ecfdc061cddf",
@@ -720,6 +721,8 @@ type DPoSConfiguration struct {
 	CRDPoSNodeHotFixHeight uint32 `screw:"--crdposnodehotfixheight" usage:"CRDPoSNodeHotFixHeight indicates the hot fix start height of CR DPoS node"`
 	// NFTStartHeight defines the height of NFT started.
 	NFTStartHeight uint32 `screw:"--nftstartheight" usage:"the start height of NFT transaction"`
+	// DPoSV2SortVotesHeight
+	DPoSV2SortVotesHeight uint32 `screw:"--dposv2sortvotesheight" usage:"defines the start height to sort DPoSV2 votes"`
 }
 
 type CRConfiguration struct {
diff --git a/common/fixed64.go b/common/fixed64.go
index 32dac7864..35076ec46 100644
--- a/common/fixed64.go
+++ b/common/fixed64.go
@@ -16,6 +16,8 @@ import (
 //the 64 bit fixed-point number, precise 10^-8
 type Fixed64 int64
 
+const ZeroFixed64 = Fixed64(0)
+
 func (f *Fixed64) Serialize(w io.Writer) error {
 	return WriteElement(w, f)
 }
diff --git a/core/transaction/dposv2claimrewardtransaction.go b/core/transaction/dposv2claimrewardtransaction.go
index dde5c0547..cc546b97d 100644
--- a/core/transaction/dposv2claimrewardtransaction.go
+++ b/core/transaction/dposv2claimrewardtransaction.go
@@ -20,6 +20,8 @@ import (
 	"github.com/elastos/Elastos.ELA/vm"
 )
 
+const RewardTolerance = 10
+
 type DPoSV2ClaimRewardTransaction struct {
 	BaseTransaction
 }
@@ -103,8 +105,16 @@ func (t *DPoSV2ClaimRewardTransaction) SpecialContextCheck() (elaerr.ELAError, b
 		return elaerr.Simple(elaerr.ErrTxPayload, errors.New("no reward to claim for such address")), true
 	}
 
-	if claimAmount < claimReward.Value {
-		return elaerr.Simple(elaerr.ErrTxPayload, errors.New("claim reward exceeded , max claim reward "+claimAmount.String())), true
+	if t.parameters.BlockHeight < t.parameters.Config.DPoSConfiguration.DPoSV2SortVotesHeight {
+		if claimAmount+RewardTolerance*t.parameters.Config.MinCrossChainTxFee < claimReward.Value {
+			return elaerr.Simple(elaerr.ErrTxPayload, errors.New("claim reward exceeded , max claim reward "+
+				claimAmount.String()+" current:"+claimReward.Value.String())), true
+		}
+	} else {
+		if claimAmount < claimReward.Value {
+			return elaerr.Simple(elaerr.ErrTxPayload, errors.New("claim reward exceeded , max claim reward "+
+				claimAmount.String()+" current:"+claimReward.Value.String())), true
+		}
 	}
 
 	if claimReward.Value <= t.parameters.Config.CRConfiguration.RealWithdrawSingleFee {
diff --git a/dpos/state/arbitrators.go b/dpos/state/arbitrators.go
index cae18b880..06a8f7821 100644
--- a/dpos/state/arbitrators.go
+++ b/dpos/state/arbitrators.go
@@ -734,10 +734,22 @@ func (a *Arbiters) getDPoSV2RewardsV2(dposReward common.Fixed64, sponsor []byte,
 			if len(sVoteDetail) == 0 {
 				continue
 			}
+			type sVoteDetailData struct {
+				Addr     common.Uint256
+				VoteInfo payload.DetailedVoteInfo
+			}
+			svdd := make([]sVoteDetailData, 0)
+			for referKey, votes := range sVoteDetail {
+				svdd = append(svdd, sVoteDetailData{referKey, votes})
+				sort.Slice(svdd, func(i, j int) bool {
+					return svdd[i].Addr.Compare(svdd[j].Addr) < 0
+				})
+			}
+
 			var totalN float64
-			for _, votes := range sVoteDetail {
-				weightF := math.Log10(float64(votes.Info[0].LockTime-votes.BlockHeight) / 7200 * 10)
-				N := common.Fixed64(float64(votes.Info[0].Votes) * weightF)
+			for _, votes := range svdd {
+				weightF := math.Log10(float64(votes.VoteInfo.Info[0].LockTime-votes.VoteInfo.BlockHeight) / 7200 * 10)
+				N := common.Fixed64(float64(votes.VoteInfo.Info[0].Votes) * weightF)
 				totalN += float64(N)
 			}
 			if totalN == 0 {
@@ -747,9 +759,21 @@ func (a *Arbiters) getDPoSV2RewardsV2(dposReward common.Fixed64, sponsor []byte,
 			totalNI += totalN
 		}
 
-		for sVoteAddr, N := range producersN {
-			addr, _ := sVoteAddr.ToAddress()
-			p := N / totalNI * float64(votesReward)
+		type kvData struct {
+			Addr common.Uint168
+			N    float64
+		}
+		sortedProducersN := make([]kvData, 0)
+		for k, v := range producersN {
+			sortedProducersN = append(sortedProducersN, kvData{k, v})
+		}
+		sort.Slice(sortedProducersN, func(i, j int) bool {
+			return sortedProducersN[i].Addr.Compare(sortedProducersN[j].Addr) < 0
+		})
+
+		for _, producerN := range sortedProducersN {
+			addr, _ := producerN.Addr.ToAddress()
+			p := producerN.N / totalNI * float64(votesReward)
 			rewards[addr] += common.Fixed64(p)
 			log.Debugf("getDPoSV2Rewards addr:%s, p:%s, reward:%s \n", addr, common.Fixed64(p), rewards[addr])
 		}
diff --git a/dpos/state/keyframe.go b/dpos/state/keyframe.go
index eda9cdd89..6c46404eb 100644
--- a/dpos/state/keyframe.go
+++ b/dpos/state/keyframe.go
@@ -133,6 +133,8 @@ func (s *StateKeyFrame) snapshot() *StateKeyFrame {
 		SpecialTxHashes:          make(map[common.Uint256]struct{}),
 		PreBlockArbiters:         make(map[string]struct{}),
 		ProducerDepositMap:       make(map[common.Uint168]struct{}),
+
+		EmergencyInactiveArbiters: make(map[string]struct{}),
 	}
 	state.NodeOwnerKeys = copyStringMap(s.NodeOwnerKeys)
 	state.CurrentCRNodeOwnerKeys = copyStringMap(s.CurrentCRNodeOwnerKeys)
@@ -166,7 +168,21 @@ func (s *StateKeyFrame) snapshot() *StateKeyFrame {
 	state.PreBlockArbiters = copyStringSet(s.PreBlockArbiters)
 	state.ProducerDepositMap = copyDIDSet(s.ProducerDepositMap)
 
-	//todo add DPOSStartHeight and so on
+	state.EmergencyInactiveArbiters = copyStringSet(s.EmergencyInactiveArbiters)
+	state.LastRandomCandidateOwner = s.LastRandomCandidateOwner
+	state.VersionStartHeight = s.VersionStartHeight
+	state.VersionEndHeight = s.VersionEndHeight
+	state.LastRandomCandidateHeight = s.LastRandomCandidateHeight
+	state.DPOSWorkHeight = s.DPOSWorkHeight
+	state.ConsensusAlgorithm = s.ConsensusAlgorithm
+	state.LastBlockTimestamp = s.LastBlockTimestamp
+	state.NeedRevertToDPOSTX = s.NeedRevertToDPOSTX
+	state.NeedNextTurnDPOSInfo = s.NeedNextTurnDPOSInfo
+	state.NoProducers = s.NoProducers
+	state.NoClaimDPOSNode = s.NoClaimDPOSNode
+	state.RevertToPOWBlockHeight = s.RevertToPOWBlockHeight
+	state.LastIrreversibleHeight = s.LastIrreversibleHeight
+	state.DPOSStartHeight = s.DPOSStartHeight
 	state.DPoSV2ActiveHeight = s.DPoSV2ActiveHeight
 
 	return &state
diff --git a/dpos/state/state.go b/dpos/state/state.go
index fe777d349..b1d3c30f7 100644
--- a/dpos/state/state.go
+++ b/dpos/state/state.go
@@ -234,11 +234,24 @@ func (p *Producer) GetExpiredNFTVotes() map[common.Uint168]payload.DetailedVoteI
 	return p.expiredNFTVotes
 }
 
+type sVoteDetailData struct {
+	Addr     common.Uint256
+	VoteInfo payload.DetailedVoteInfo
+}
+
 func (p *Producer) GetTotalDPoSV2VoteRights() float64 {
 	var result float64
 	for _, sVoteDetail := range p.detailedDPoSV2Votes {
+		svdd := make([]sVoteDetailData, 0)
+		for referKey, votes := range sVoteDetail {
+			svdd = append(svdd, sVoteDetailData{referKey, votes})
+			sort.Slice(svdd, func(i, j int) bool {
+				return svdd[i].Addr.Compare(svdd[j].Addr) < 0
+			})
+		}
 		var totalN float64
-		for _, votes := range sVoteDetail {
+		for _, v := range svdd {
+			votes := v.VoteInfo
 			weightF := math.Log10(float64(votes.Info[0].LockTime-votes.BlockHeight) / 7200 * 10)
 			N := common.Fixed64(float64(votes.Info[0].Votes) * weightF)
 			totalN += float64(N)
@@ -251,7 +264,20 @@ func (p *Producer) GetTotalDPoSV2VoteRights() float64 {
 
 func (p *Producer) GetNFTVotesRight(targetReferKey common.Uint256) float64 {
 	for _, sVoteDetail := range p.detailedDPoSV2Votes {
+		type sVoteDetailData struct {
+			Addr     common.Uint256
+			VoteInfo payload.DetailedVoteInfo
+		}
+		svdd := make([]sVoteDetailData, 0)
 		for referKey, votes := range sVoteDetail {
+			svdd = append(svdd, sVoteDetailData{referKey, votes})
+			sort.Slice(svdd, func(i, j int) bool {
+				return svdd[i].Addr.Compare(svdd[j].Addr) < 0
+			})
+		}
+		for _, v := range svdd {
+			referKey := v.Addr
+			votes := v.VoteInfo
 			if referKey.IsEqual(targetReferKey) {
 				weightF := math.Log10(float64(votes.Info[0].LockTime-votes.BlockHeight) / 7200 * 10)
 				N := common.Fixed64(float64(votes.Info[0].Votes) * weightF)
diff --git a/servers/interfaces.go b/servers/interfaces.go
index 4f3354f3d..450f0b408 100644
--- a/servers/interfaces.go
+++ b/servers/interfaces.go
@@ -2341,6 +2341,9 @@ func DposV2RewardInfo(param Params) map[string]interface{} {
 		claimable := Chain.GetState().DPoSV2RewardInfo[stakeAddress]
 		claiming := Chain.GetState().DposV2RewardClaimingInfo[stakeAddress]
 		claimed := Chain.GetState().DposV2RewardClaimedInfo[stakeAddress]
+		if claimable < common.ZeroFixed64 {
+			claimable = common.ZeroFixed64
+		}
 		result := RPCDposV2RewardInfo{
 			Address:   addr,
 			Claimable: claimable.String(),