From 9cdd5669fc15a32d23115a52f6899ce7afc54480 Mon Sep 17 00:00:00 2001
From: NotAPenguin <michiel.vandeginste@gmail.com>
Date: Wed, 6 Nov 2024 13:01:46 +0100
Subject: [PATCH] Fix baryonic perfection voiding one catalyst when recipe
 fails (#3455)

Co-authored-by: Martin Robertz <dream-master@gmx.net>
---
 .../purification/MTEPurificationUnitBaryonicPerfection.java     | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/main/java/gregtech/common/tileentities/machines/multi/purification/MTEPurificationUnitBaryonicPerfection.java b/src/main/java/gregtech/common/tileentities/machines/multi/purification/MTEPurificationUnitBaryonicPerfection.java
index 0b771eb5da4..96e1c8e9c93 100644
--- a/src/main/java/gregtech/common/tileentities/machines/multi/purification/MTEPurificationUnitBaryonicPerfection.java
+++ b/src/main/java/gregtech/common/tileentities/machines/multi/purification/MTEPurificationUnitBaryonicPerfection.java
@@ -408,7 +408,7 @@ public void endCycle() {
         // Output incorrect indices unchanged, the spent ones will follow if recipe was successful from the actual
         // recipe outputs
         for (int i = 0; i < insertedCatalysts.size(); ++i) {
-            if (i == correctStartIndex || i == correctStartIndex + 1) continue;
+            if (correctStartIndex != -1 && (i == correctStartIndex || i == correctStartIndex + 1)) continue;
 
             addOutput(insertedCatalysts.get(i));
         }