diff --git a/common/CMakeLists.txt b/common/CMakeLists.txt
index 1a9028eb7..45af7b94d 100644
--- a/common/CMakeLists.txt
+++ b/common/CMakeLists.txt
@@ -842,6 +842,11 @@ ENDIF (UNIX)
 
 IF (EQEMU_BUILD_PCH)
     TARGET_PRECOMPILE_HEADERS(common PRIVATE pch/std-pch.h)
+    # Avoid PCH/__OPTIMIZE__ mismatch when compiling certain patch sources with -O0
+    # These files are compiled with -O0 on UNIX (see COMPILE_FLAGS above), which
+    # disables the __OPTIMIZE__ predefined macro. Disabling PCH for them prevents
+    # Clang from erroring due to macro state differences between the PCH and TU.
+    SET_SOURCE_FILES_PROPERTIES("patches/sod.cpp" "patches/sof.cpp" "patches/rof.cpp" "patches/rof2.cpp" "patches/uf.cpp" PROPERTIES SKIP_PRECOMPILE_HEADERS ON)
 ENDIF ()
 
 SET(LIBRARY_OUTPUT_PATH ${PROJECT_BINARY_DIR}/bin)
diff --git a/zone/inventory.cpp b/zone/inventory.cpp
index 1c2b62c4f..847368d1b 100644
--- a/zone/inventory.cpp
+++ b/zone/inventory.cpp
@@ -4607,26 +4607,32 @@ void Client::SummonItemIntoInventory(
 		return;
 	}
 
-	const bool  is_arrow = inst->GetItem()->ItemType == EQ::item::ItemTypeArrow;
-	const int16 slot_id  = m_inv.FindFreeSlot(
-		inst->IsClassBag(),
-		true,
-		inst->GetItem()->Size,
-		is_arrow
-	);
+	// Try stacking first if the item is stackable, then fall back to finding a free slot
+	if (!PutItemInInventoryWithStacking(inst)) {
+		// PutItemInInventoryWithStacking failed, fall back to original behavior
+		const bool  is_arrow = inst->GetItem()->ItemType == EQ::item::ItemTypeArrow;
+		const int16 slot_id  = m_inv.FindFreeSlot(
+			inst->IsClassBag(),
+			true,
+			inst->GetItem()->Size,
+			is_arrow
+		);
 
-	SummonItem(
-		item_id,
-		charges,
-		aug1,
-		aug2,
-		aug3,
-		aug4,
-		aug5,
-		aug6,
-		is_attuned,
-		slot_id
-	);
+		SummonItem(
+			item_id,
+			charges,
+			aug1,
+			aug2,
+			aug3,
+			aug4,
+			aug5,
+			aug6,
+			is_attuned,
+			slot_id
+		);
+	}
+
+	safe_delete(inst);
 }
 
 bool Client::HasItemOnCorpse(uint32 item_id)