diff --git a/src/Connector.js b/src/Connector.js
index b42f1123..832f580a 100644
--- a/src/Connector.js
+++ b/src/Connector.js
@@ -112,6 +112,13 @@ class AbstractConnector { //eslint-disable-line no-unused-vars
     }
     return false;
   }
+  send (uid, message) {
+    if (this.debug) {
+      console.log(`me -> ${uid}: ${message.type}`);//eslint-disable-line
+      console.dir(m); //eslint-disable-line
+    }
+    super(uid, message);
+  }
   // You received a raw message, and you know that it is intended for to Yjs. Then call this function.
   receiveMessage (sender, m){
     if (sender === this.userId) {
diff --git a/src/Connectors/Test.js b/src/Connectors/Test.js
index ae7fde3f..5a41348e 100644
--- a/src/Connectors/Test.js
+++ b/src/Connectors/Test.js
@@ -37,6 +37,7 @@ function flushOne(){
     return false;
   }
 }
+
 // setInterval(flushOne, 10);
 
 var userIdCounter = 0;
@@ -64,6 +65,13 @@ class Test extends AbstractConnector {
   disconnect () {
     globalRoom.removeUser(this.userId);
   }
+  flush() {
+    var buff = globalRoom.buffers[this.userId];
+    while (buff.length > 0) {
+      var m = buff.shift();
+      this.receiveMessage(m[0], m[1]);
+    }
+  }
   flushAll () {
     var c = true;
     while (c) {
diff --git a/src/OperationStore.js b/src/OperationStore.js
index 151fe9de..421d94ed 100644
--- a/src/OperationStore.js
+++ b/src/OperationStore.js
@@ -174,6 +174,9 @@ class AbstractOperationStore { //eslint-disable-line no-unused-vars
           yield* this.store.operationAdded(this, op);
           // find next operation to execute
           op = this.store.waitingOperations.find([op.id[0], state.clock]);
+          if (op != null) {
+            this.store.waitingOperations.delete([op.id[0], state.clock]);
+          }
         } else {
           if (op.id[1] > state.clock) {
             // has to be executed at some point later
diff --git a/src/OperationStores/Memory.js b/src/OperationStores/Memory.js
index 61bfb521..2038848a 100644
--- a/src/OperationStores/Memory.js
+++ b/src/OperationStores/Memory.js
@@ -120,17 +120,31 @@ Y.Memory = (function(){ //eslint-disable-line no-unused-vars
       super(y);
       this.os = new RBTree();
       this.ss = {};
+      this.waitingTransactions = [];
+      this.transactionInProgress = false;
     }
-    requestTransaction (makeGen : Function) {
-      var t = new Transaction(this);
-      var gen = makeGen.call(t);
-      var res = gen.next();
-      while(!res.done){
-        if (res.value === "transaction") {
-          res = gen.next(t);
-        } else {
-          throw new Error("You must not yield this type. (Maybe you meant to use 'yield*'?)");
-        }
+    requestTransaction (_makeGen : Function) {
+      if (!this.transactionInProgress) {
+        this.transactionInProgress = true;
+        window.setTimeout(() => {
+          var makeGen = _makeGen;
+          while (makeGen != null) {
+            var t = new Transaction(this);
+            var gen = makeGen.call(t);
+            var res = gen.next();
+            while(!res.done){
+              if (res.value === "transaction") {
+                res = gen.next(t);
+              } else {
+                throw new Error("You must not yield this type. (Maybe you meant to use 'yield*'?)");
+              }
+            }
+            makeGen = this.waitingTransactions.shift();
+          }
+          this.transactionInProgress = false;
+        }, 0);
+      } else {
+        this.waitingTransactions.push(_makeGen);
       }
     }
     *removeDatabase () {
diff --git a/src/Struct.js b/src/Struct.js
index 04a5ca6b..37884537 100644
--- a/src/Struct.js
+++ b/src/Struct.js
@@ -95,9 +95,9 @@ var Struct = {
       if(op.right != null){
         ids.push(op.right);
       }
-      if(op.right == null && op.left == null) {
-        ids.push(op.parent);
-      }
+      //if(op.right == null && op.left == null) {}
+      ids.push(op.parent);
+
       if (op.opContent != null) {
         ids.push(op.opContent);
       }
@@ -276,7 +276,7 @@ var Struct = {
     map: function* (o : Op, f : Function) : Array<any> {
       o = o.start;
       var res = [];
-      while ( o != null) {
+      while ( o !== null) {
         var operation = yield* this.getOperation(o);
         if (!operation.deleted) {
           res.push(f(operation));
diff --git a/src/Types/Array.js b/src/Types/Array.js
index 418c3104..3c58e73a 100644
--- a/src/Types/Array.js
+++ b/src/Types/Array.js
@@ -123,6 +123,9 @@
       if (pos + length > this.idArray.length || pos < 0 || length < 0) {
         throw new Error("The deletion range exceeds the range of the array!");
       }
+      if (length === 0) {
+        return;
+      }
       var eventHandler = this.eventHandler;
       var newLeft = pos > 0 ? JSON.parse(this.idArray[pos - 1]) : null;
       var dels = [];
diff --git a/src/Types/TextBind.spec.js b/src/Types/TextBind.spec.js
new file mode 100644
index 00000000..0937de25
--- /dev/null
+++ b/src/Types/TextBind.spec.js
@@ -0,0 +1,50 @@
+/* @flow */
+/*eslint-env browser,jasmine */
+
+describe("TextBind Type", function(){
+  jasmine.DEFAULT_TIMEOUT_INTERVAL = 5000;
+  beforeEach(function(done){
+    createUsers(this, 5, done);
+  });
+
+  describe("debug tests", function(){
+    it("#1", function(done){
+      var y = this.users[0].root;
+      var y2 = this.users[1].root;
+      var y3 = this.users[2].root;
+      var c1 = this.users[0].connector;
+      var c2 = this.users[1].connector;
+      var c3 = this.users[2].connector;
+      function flushOneAndTwo(){
+        c1.flush();
+        c2.flush();
+      }
+      var u1, u2;
+      y.set("text", Y.TextBind);
+      flushOneAndTwo();
+      y.get("text").then(function(array) {
+        u1 = array;
+        flushOneAndTwo();
+        return y2.get("text");
+      }).then(function(array){
+        u2 = array;
+        u1.insert(0, "a");
+        flushOneAndTwo();
+        u2.insert(1, "b");
+        flushOneAndTwo();
+        u1.insert(2, "c");
+        flushOneAndTwo();
+        u2.insert(3, "d");
+        y3.observe(function(events){
+          for (var event of events) {
+            if (event.name === "text") {
+              y3.get("text");
+            }
+          }
+        });
+        c3.flush();
+        done();
+      });
+    });
+  });
+});