From 335308a7ef2e40a7956228919f67696d110da60e Mon Sep 17 00:00:00 2001
From: Mario Zechner <badlogicgames@gmail.com>
Date: Mon, 29 Sep 2025 16:16:39 +0200
Subject: [PATCH] [c][cpp][flutter][ios] Port of
 64ed135e4939d9672f1ab48bdcec645ee50c37ef

---
 spine-cpp/src/spine/Slider.cpp                |   3 ++-
 .../lib/assets/libspine_flutter.wasm          | Bin 574845 -> 574863 bytes
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/spine-cpp/src/spine/Slider.cpp b/spine-cpp/src/spine/Slider.cpp
index 014ea2ec3..c996ce8c9 100644
--- a/spine-cpp/src/spine/Slider.cpp
+++ b/spine-cpp/src/spine/Slider.cpp
@@ -117,7 +117,8 @@ void Slider::sort(Skeleton &skeleton) {
 				skeleton.constrained((Posed &) *constraints[timeline->getConstraintIndex()]);
 		} else if (t->getRTTI().instanceOf(ConstraintTimeline::rtti)) {
 			ConstraintTimeline *timeline = (ConstraintTimeline *) t;
-			skeleton.constrained((Posed &) *constraints[timeline->getConstraintIndex()]);
+			int index = timeline->getConstraintIndex();
+			if (index != -1) skeleton.constrained((Posed &) *constraints[timeline->getConstraintIndex()]);
 		}
 	}
 }
diff --git a/spine-flutter/lib/assets/libspine_flutter.wasm b/spine-flutter/lib/assets/libspine_flutter.wasm
index 59e5c58e2563a2e1ea7ee0995c8302a684f03dcd..6e5839b4455c47a6dcaf691290e7dbe68344c245 100755
GIT binary patch
delta 61
zcmey{rQF}G+^~hw><{C-cJn`sK+FWh%s|Wn#H`!R|FFG}WSqZUJ&ZkuiP^E<t-U0I
LeS1j+2WKt-I3yT!

delta 57
zcmeD0R{q<i+^~hw><?p4yZIkRAZ7w$W*}w(V%F{Ef7sqfGWKp)4`YvEYM&axzI|#0
H$FCd!*>o6r