diff --git a/api/keystore/service.go b/api/keystore/service.go
index fe1b349..5575083 100644
--- a/api/keystore/service.go
+++ b/api/keystore/service.go
@@ -218,7 +218,7 @@ func (ks *Keystore) ExportUser(_ *http.Request, args *ExportUserArgs, reply *Exp
 		return err
 	}
 	if !usr.CheckPassword(args.Password) {
-		return fmt.Errorf("incorrect password for %s", args.Username)
+		return fmt.Errorf("incorrect password for user %q", args.Username)
 	}
 
 	userDB := prefixdb.New([]byte(args.Username), ks.bcDB)
@@ -274,6 +274,9 @@ func (ks *Keystore) ImportUser(r *http.Request, args *ImportUserArgs, reply *Imp
 	if err := ks.codec.Unmarshal(args.User.Bytes, &userData); err != nil {
 		return err
 	}
+	if !userData.User.CheckPassword(args.Password) {
+		return fmt.Errorf("incorrect password for user %q", args.Username)
+	}
 
 	usrBytes, err := ks.codec.Marshal(&userData.User)
 	if err != nil {
@@ -383,7 +386,7 @@ func (ks *Keystore) GetDatabase(bID ids.ID, username, password string) (database
 		return nil, err
 	}
 	if !usr.CheckPassword(password) {
-		return nil, fmt.Errorf("incorrect password for user '%s'", username)
+		return nil, fmt.Errorf("incorrect password for user %q", username)
 	}
 
 	userDB := prefixdb.New([]byte(username), ks.bcDB)
diff --git a/api/keystore/service_test.go b/api/keystore/service_test.go
index 75b7166..b4c805d 100644
--- a/api/keystore/service_test.go
+++ b/api/keystore/service_test.go
@@ -255,6 +255,17 @@ func TestServiceExportImport(t *testing.T) {
 	newKS := Keystore{}
 	newKS.Initialize(logging.NoLog{}, memdb.New())
 
+	{
+		reply := ImportUserReply{}
+		if err := newKS.ImportUser(nil, &ImportUserArgs{
+			Username: "bob",
+			Password: "",
+			User:     exportReply.User,
+		}, &reply); err == nil {
+			t.Fatal("Should have errored due to incorrect password")
+		}
+	}
+
 	{
 		reply := ImportUserReply{}
 		if err := newKS.ImportUser(nil, &ImportUserArgs{
diff --git a/networking/handshake_handlers.go b/networking/handshake_handlers.go
index d82df74..554f4fb 100644
--- a/networking/handshake_handlers.go
+++ b/networking/handshake_handlers.go
@@ -515,7 +515,7 @@ func (nm *Handshake) disconnectedFromPeer(peer salticidae.PeerID) {
 	nm.connections.Remove(peer, cert)
 	nm.numPeers.Set(float64(nm.connections.Len()))
 
-	if nm.vdrs.Contains(cert) {
+	if !nm.enableStaking || nm.vdrs.Contains(cert) {
 		nm.reconnectTimeout.Put(peerID, func() {
 			nm.pending.Remove(peer, cert)
 			nm.connections.Remove(peer, cert)
diff --git a/vms/platformvm/atomic_block.go b/vms/platformvm/atomic_block.go
index 20c2892..3293094 100644
--- a/vms/platformvm/atomic_block.go
+++ b/vms/platformvm/atomic_block.go
@@ -36,7 +36,7 @@ type AtomicTx interface {
 // AtomicBlock being accepted results in the transaction contained in the
 // block to be accepted and committed to the chain.
 type AtomicBlock struct {
-	SingleDecisionBlock `serialize:"true"`
+	CommonDecisionBlock `serialize:"true"`
 
 	Tx AtomicTx `serialize:"true"`
 
@@ -45,7 +45,7 @@ type AtomicBlock struct {
 
 // initialize this block
 func (ab *AtomicBlock) initialize(vm *VM, bytes []byte) error {
-	if err := ab.SingleDecisionBlock.initialize(vm, bytes); err != nil {
+	if err := ab.CommonDecisionBlock.initialize(vm, bytes); err != nil {
 		return err
 	}
 	return ab.Tx.initialize(vm)
@@ -123,9 +123,6 @@ func (ab *AtomicBlock) Accept() {
 		ab.onAcceptFunc()
 	}
 
-	parent := ab.parentBlock()
-	// remove this block and its parent from memory
-	parent.free()
 	ab.free()
 }
 
@@ -133,11 +130,9 @@ func (ab *AtomicBlock) Accept() {
 // decision block, has ID [parentID].
 func (vm *VM) newAtomicBlock(parentID ids.ID, tx AtomicTx) (*AtomicBlock, error) {
 	ab := &AtomicBlock{
-		SingleDecisionBlock: SingleDecisionBlock{CommonDecisionBlock: CommonDecisionBlock{
-			CommonBlock: CommonBlock{
-				Block: core.NewBlock(parentID),
-				vm:    vm,
-			},
+		CommonDecisionBlock: CommonDecisionBlock{CommonBlock: CommonBlock{
+			Block: core.NewBlock(parentID),
+			vm:    vm,
 		}},
 		Tx: tx,
 	}