From 56abac79cad2cb9d0aff65bd8c1f488cec4a9f9f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Nicol=C3=A1s=20Hatcher?= <nicolas@theuniverse.today>
Date: Sat, 19 Jul 2025 09:01:02 +0200
Subject: [PATCH] FIX: Skip cells that have already been computed

---
 .../src/components/WorksheetCanvas/worksheetCanvas.ts         | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/webapp/IronCalc/src/components/WorksheetCanvas/worksheetCanvas.ts b/webapp/IronCalc/src/components/WorksheetCanvas/worksheetCanvas.ts
index e792ac9..82b1f7e 100644
--- a/webapp/IronCalc/src/components/WorksheetCanvas/worksheetCanvas.ts
+++ b/webapp/IronCalc/src/components/WorksheetCanvas/worksheetCanvas.ts
@@ -388,13 +388,15 @@ export default class WorksheetCanvas {
     topLeftCell: Cell,
     bottomRightCell: Cell,
   ): void {
+    const frozenColumnsCount = this.model.getFrozenColumnsCount(selectedSheet);
     // First compute the text to the left of the viewport
     const columnToTheLeft = this.model.getLastNonEmptyInRowBeforeColumn(
       selectedSheet,
       row,
       topLeftCell.column,
     );
-    if (columnToTheLeft) {
+    // If it is one of the frozen columns it is already computed
+    if (columnToTheLeft && columnToTheLeft > frozenColumnsCount) {
       const columnWidth = this.getColumnWidth(selectedSheet, columnToTheLeft);
       const [textX, textY] = this.getCoordinatesByCell(row, columnToTheLeft);
       this.computeCellText(