diff --git a/src/conditionProcessValue.ts b/src/conditionProcessValue.ts
index 5d9be973e8..6da2c8e206 100644
--- a/src/conditionProcessValue.ts
+++ b/src/conditionProcessValue.ts
@@ -143,18 +143,18 @@ export class ProcessValue {
     if (!name) return name;
     if (!obj) obj = {};
     if (obj.hasOwnProperty(name)) return name;
-    name = name.toLowerCase();
-    var A = name[0];
+    var nameInLow = name.toLowerCase();
+    var A = nameInLow[0];
     var a = A.toUpperCase();
     for (var key in obj) {
       var first = key[0];
       if (first === a || first === A) {
         var keyName = key.toLowerCase();
-        if (keyName == name) return key;
-        if (name.length <= keyName.length) continue;
-        var ch = name[keyName.length];
+        if (keyName == nameInLow) return key;
+        if (nameInLow.length <= keyName.length) continue;
+        var ch = nameInLow[keyName.length];
         if (ch != "." && ch != "[") continue;
-        if (keyName == name.substr(0, keyName.length)) return key;
+        if (keyName == nameInLow.substr(0, keyName.length)) return key;
       }
     }
     if (createProp && name[0] !== "[") {
diff --git a/tests/question_matrixdynamictests.ts b/tests/question_matrixdynamictests.ts
index c0f7c22d8b..103b58b298 100644
--- a/tests/question_matrixdynamictests.ts
+++ b/tests/question_matrixdynamictests.ts
@@ -5406,3 +5406,60 @@ QUnit.test("Detail panel, Process text in titles", function (assert) {
     "Text preprocessed correctly"
   );
 });
+
+QUnit.test("copyvalue trigger for dropdown matrix cell", function (assert) {
+  var survey = new SurveyModel({
+    elements: [
+      {
+        type: "matrixdropdown",
+        name: "q1",
+        rows: ["item1", "Item2"],
+        columns: [{ name: "c1", cellType: "text" }],
+      },
+      {
+        type: "matrixdropdown",
+        name: "q2",
+        rows: ["item1", "Item2"],
+        columns: [{ name: "c1", cellType: "text" }],
+      },
+    ],
+    triggers: [
+      {
+        type: "copyvalue",
+        expression: "{q1.item1.c1} notempty",
+        setToName: "q2.item1.c1",
+        fromName: "q1.item1.c1",
+      },
+      {
+        type: "copyvalue",
+        expression: "{q1.Item2.c1} notempty",
+        setToName: "q2.Item2.c1",
+        fromName: "q1.Item2.c1",
+      },
+    ],
+  });
+  var q1 = <QuestionMatrixDynamicModel>survey.getQuestionByName("q1");
+  var q2 = <QuestionMatrixDynamicModel>survey.getQuestionByName("q2");
+  q1.visibleRows[0].cells[0].value = "val1";
+  q1.visibleRows[1].cells[0].value = "val2";
+  assert.equal(
+    q2.visibleRows[0].cells[0].value,
+    "val1",
+    "copy value for item1"
+  );
+  assert.equal(
+    survey.runCondition("{q1.Item2.c1} notempty"),
+    true,
+    "The expression returns true"
+  );
+  assert.equal(
+    survey.runExpression("{q1.Item2.c1}"),
+    "val2",
+    "The expression returns val2"
+  );
+  assert.equal(
+    q2.visibleRows[1].cells[0].value,
+    "val2",
+    "copy value for Item2"
+  );
+});
diff --git a/tests/textPreprocessorTests.ts b/tests/textPreprocessorTests.ts
index a756c37359..85d33ed1de 100644
--- a/tests/textPreprocessorTests.ts
+++ b/tests/textPreprocessorTests.ts
@@ -147,7 +147,7 @@ QUnit.test("ProcessValue setValue function", function (assert) {
 
 QUnit.test("ProcessValue setValue function - create path", function (assert) {
   var processor = new ProcessValue();
-  var data = { a: {}, b: 1 };
+  var data: any = { a: {}, b: 1 };
   processor.setValue(data, "a.b", 1);
   assert.deepEqual(data, { a: { b: 1 }, b: 1 }, "set the object inside");
   processor.setValue(data, "c.a.b", 2);
@@ -157,6 +157,13 @@ QUnit.test("ProcessValue setValue function - create path", function (assert) {
     { a: { b: 1 }, b: 1, c: { a: { b: 2 } } },
     "create new object"
   );
+  data = { a: { Item1: { c1: 0 }, Item3: { c1: 1 } } };
+  processor.setValue(data, "a.Item1.c1", 1);
+  processor.setValue(data, "a.Item2.c1", 2);
+  processor.setValue(data, "a.Item3.c1", 3);
+  assert.deepEqual(data, {
+    a: { Item1: { c1: 1 }, Item2: { c1: 2 }, Item3: { c1: 3 } },
+  });
 });
 
 QUnit.test("ProcessValue setValue function for arrays", function (assert) {