diff --git a/src/Smartable/AsyncManager.tsx b/src/Smartable/AsyncManager.tsx
index 947a5fb..20abffd 100644
--- a/src/Smartable/AsyncManager.tsx
+++ b/src/Smartable/AsyncManager.tsx
@@ -85,6 +85,12 @@ class AsyncManager<CK extends ColumnKey>
 	protected promisedRowsCells: Partial<Record<CK, Promised<CellDefinition>>>[] = [];
 
 
+	/**
+	 * Tells if rows are loaded or not.
+	 * @protected
+	 */
+	protected rowsLoaded: boolean = false;
+
 	/**
 	 * Rows data.
 	 * @protected
@@ -109,6 +115,7 @@ class AsyncManager<CK extends ColumnKey>
 	 */
 	handle(data: SmartableData<CK>): void
 	{
+		this.rowsLoaded = false;
 		this.promisedData.refresh(data);
 	}
 
@@ -125,6 +132,7 @@ class AsyncManager<CK extends ColumnKey>
 		// Initialize rows data and cells definitions.
 		this.rowsData = [];
 		this.cellsDefinitions = [];
+		this.rowsLoaded = true;
 
 		for (const [rowId, rowDefinition] of rowsDefinitions.entries())
 		{ // Get row data of each row.
@@ -218,20 +226,21 @@ class AsyncManager<CK extends ColumnKey>
 	{
 		if (!(
 			// Checking that there is at least one changed value.
-			this.rowsData.length > 0 && this.cellsDefinitions.some((rowCells) => (
+			this.rowsData.length > 0 || this.cellsDefinitions.some((rowCells) => (
 				Object.keys(rowCells).length > 0
 			))
+			|| ((this.rowsLoaded && !this.currentDataState.rows) || (!this.rowsLoaded && this.currentDataState.rows))
 		)) // Nothing has changed.
 			return;
 
 		// Initialize new data.
 		const newData = {
-			rows: [
+			rows: !this.rowsLoaded ? undefined : [
 				...(this.currentDataState?.rows ?? [])
 			],
 		};
 
-		for (const [rowId, newRow] of this.rowsData.entries())
+		for (const [rowId, newRow] of this.rowsData?.entries())
 		{ // Update value of each new row.
 			newData.rows[rowId] = {
 				element: newRow.element,
@@ -240,7 +249,7 @@ class AsyncManager<CK extends ColumnKey>
 			};
 		}
 
-		for (const [rowId, rowCells] of this.cellsDefinitions.entries())
+		for (const [rowId, rowCells] of this.cellsDefinitions?.entries())
 		{ // Update cells of each changed row.
 			newData.rows[rowId] = {
 				...newData.rows[rowId],