From d2e7605e5cefc7ef5c86693b9e5ce48086f40354 Mon Sep 17 00:00:00 2001
From: WarmUpTill <19472752+WarmUpTill@users.noreply.github.com>
Date: Fri, 8 May 2026 18:58:55 +0200
Subject: [PATCH] Fix "transitioning from" check not working in studio mode

---
 plugins/base/macro-condition-transition.cpp | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/plugins/base/macro-condition-transition.cpp b/plugins/base/macro-condition-transition.cpp
index c84dd305..4da8f3f4 100644
--- a/plugins/base/macro-condition-transition.cpp
+++ b/plugins/base/macro-condition-transition.cpp
@@ -158,8 +158,21 @@ void MacroConditionTransition::TransitionStarted(void *data, calldata_t *cd)
 
 	OBSSourceAutoRelease startSource = obs_transition_get_source(
 		transitionSource, OBS_TRANSITION_SOURCE_A);
+
+	// In studio mode, source A may be a private copy of the scene.
+	// Look up the original by name to get a comparable reference.
+	const bool studioModeActive =
+		obs_frontend_preview_program_mode_active();
+	if (studioModeActive) {
+		OBSSourceAutoRelease startSourceByName = obs_get_source_by_name(
+			obs_source_get_name(startSource));
+		if (startSourceByName) {
+			startSource = std::move(startSourceByName);
+		}
+	}
+
 	OBSSourceAutoRelease endSource =
-		obs_frontend_preview_program_mode_active()
+		studioModeActive
 			? obs_frontend_get_current_scene()
 			: obs_transition_get_source(transitionSource,
 						    OBS_TRANSITION_SOURCE_B);