diff --git a/frontend/js/pane-manager.js b/frontend/js/pane-manager.js
index 2439e41..ade3be5 100644
--- a/frontend/js/pane-manager.js
+++ b/frontend/js/pane-manager.js
@@ -692,8 +692,6 @@ const PaneManager = {
     this.layout = 'horizontal';
     if (this.panes.length === 0) {
       this._buildGrid(2);
-      // Copy active tab to the new pane
-      this._copyActiveTabToNewPane();
     } else {
       this._addPane();
     }
@@ -706,7 +704,6 @@ const PaneManager = {
     this.layout = 'vertical';
     if (this.panes.length === 0) {
       this._buildGrid(2);
-      this._copyActiveTabToNewPane();
     } else {
       this._addPane();
     }
@@ -1362,14 +1359,6 @@ if (typeof window !== 'undefined') {
         e.preventDefault();
         if (PaneManager._hasAnyTab()) {
           PaneManager.splitRight();
-          // Transfer active tab to new pane
-          const tm = PaneManager.getActiveTabManager();
-          if (tm && tm._activeTabId) {
-            setTimeout(() => {
-              const newPaneId = PaneManager.panes.length - 1;
-              PaneManager.transferTab(PaneManager.activePaneId === newPaneId ? 0 : PaneManager.activePaneId, tm._activeTabId, newPaneId);
-            }, 200);
-          }
         }
       }
       if (e.ctrlKey && e.altKey && e.shiftKey && e.key === '\\') {