From 00aae46c167dd13969d782dbe3a96d822ae3d671 Mon Sep 17 00:00:00 2001
From: DiTus <ditus@o2.pl>
Date: Sun, 1 Mar 2026 22:49:05 +0100
Subject: [PATCH] fixed: preserve pane assignments across redraws instead of
 clearing

---
 .../dashboard/static/js/ui/indicators-panel-new.js | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/src/api/dashboard/static/js/ui/indicators-panel-new.js b/src/api/dashboard/static/js/ui/indicators-panel-new.js
index d21ce99..0465fbf 100644
--- a/src/api/dashboard/static/js/ui/indicators-panel-new.js
+++ b/src/api/dashboard/static/js/ui/indicators-panel-new.js
@@ -887,8 +887,10 @@ export function drawIndicatorsOnChart() {
         'dashed': LightweightCharts.LineStyle.Dashed 
     };
     
-    indicatorPanes.clear();
-    nextPaneIndex = 1;
+    // Don't clear indicatorPanes - preserve pane assignments across redraws
+    // Only reset nextPaneIndex to avoid creating duplicate panes
+    const maxExistingPane = Math.max(...indicatorPanes.values(), 0);
+    nextPaneIndex = maxExistingPane + 1;
     
     const overlayIndicators = [];
     const paneIndicators = [];
@@ -938,8 +940,12 @@ export function drawIndicatorsOnChart() {
     });
     
     paneIndicators.forEach(({ indicator, meta, instance }, idx) => {
-        const paneIndex = nextPaneIndex++;
-        indicatorPanes.set(indicator.id, paneIndex);
+        // Use existing pane index if already assigned, otherwise create new one
+        let paneIndex = indicatorPanes.get(indicator.id);
+        if (paneIndex === undefined) {
+            paneIndex = nextPaneIndex++;
+            indicatorPanes.set(indicator.id, paneIndex);
+        }
         
         console.log(`[Indicators] Processing pane: ${indicator.name} (pane ${paneIndex})`);
         console.log(`[Indicators] Before renderIndicatorOnPane: indicator.cachedResults length = ${indicator.cachedResults?.length || 0}`);