From 1e2801c8916f080713d71c56c5d81bbda15d3ca8 Mon Sep 17 00:00:00 2001
From: micvog <41322907+micvog@users.noreply.github.com>
Date: Tue, 6 Oct 2026 18:46:37 +0200
Subject: [PATCH] Fix crash when returning to the crafting tree after its
 bookmark group was removed (#1063)

---
 .../codechicken/nei/bookmark/tree/GuiCraftingTree.java     | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/main/java/codechicken/nei/bookmark/tree/GuiCraftingTree.java b/src/main/java/codechicken/nei/bookmark/tree/GuiCraftingTree.java
index 01d05aea..229d1e37 100644
--- a/src/main/java/codechicken/nei/bookmark/tree/GuiCraftingTree.java
+++ b/src/main/java/codechicken/nei/bookmark/tree/GuiCraftingTree.java
@@ -190,6 +190,13 @@ public class GuiCraftingTree extends GuiContainer implements INEIGuiHandler, IGu
 
     @Override
     public void initGui() {
+
+        // the group can be removed from the bookmark panel while a recipe screen opened from this tree is shown
+        if (this.grid.getGroup(this.groupId) == null) {
+            this.mc.displayGuiScreen(this.prevGui);
+            return;
+        }
+
         this.xSize = this.width;
         this.ySize = this.height;