diff --git a/.rive_head b/.rive_head
index ca0ca4d5..ceeb57a8 100644
--- a/.rive_head
+++ b/.rive_head
@@ -1 +1 @@
-a55f1ffb6cabe9b918fa0b8fd1ad11b4d656ae1c
+8db7cac50c53ab10838da0cd80c869917c51c72a
diff --git a/.rive_renderer b/.rive_renderer
index 46dfb49c..92f627c1 100644
--- a/.rive_renderer
+++ b/.rive_renderer
@@ -1 +1 @@
-b615413345a91dbfc1ada8b7c3a91c941d25ca16
+988aea8692eb53d1e38579a7c3b75dc6c72e9cab
diff --git a/RiveRuntime.xcodeproj/project.pbxproj b/RiveRuntime.xcodeproj/project.pbxproj
index 958de410..396c8730 100644
--- a/RiveRuntime.xcodeproj/project.pbxproj
+++ b/RiveRuntime.xcodeproj/project.pbxproj
@@ -57,6 +57,7 @@
 		04BE5430264D1F4100427B39 /* LayerState.h in Headers */ = {isa = PBXBuildFile; fileRef = 04BE542F264D1F4100427B39 /* LayerState.h */; settings = {ATTRIBUTES = (Public, ); }; };
 		04BE5434264D267900427B39 /* LayerState.mm in Sources */ = {isa = PBXBuildFile; fileRef = 04BE5431264D243D00427B39 /* LayerState.mm */; };
 		04BE5436264D2A7500427B39 /* RivePrivateHeaders.h in Headers */ = {isa = PBXBuildFile; fileRef = 04BE5435264D2A7500427B39 /* RivePrivateHeaders.h */; };
+		04E222402BE3C85100D82668 /* ball_test.riv in Resources */ = {isa = PBXBuildFile; fileRef = 04E2223F2BE3C85100D82668 /* ball_test.riv */; };
 		04ED72F1299C114000E8DE53 /* RiveViewModelTest.swift in Sources */ = {isa = PBXBuildFile; fileRef = 04ED72F0299C114000E8DE53 /* RiveViewModelTest.swift */; };
 		04ED72F3299C115100E8DE53 /* empty_animation_state.riv in Resources */ = {isa = PBXBuildFile; fileRef = 04ED72F2299C115100E8DE53 /* empty_animation_state.riv */; };
 		2A7079352726277C00C035A1 /* rive_renderer_view.hh in Headers */ = {isa = PBXBuildFile; fileRef = 2A7079342726277C00C035A1 /* rive_renderer_view.hh */; settings = {ATTRIBUTES = (Public, ); }; };
@@ -157,6 +158,7 @@
 		04BE542F264D1F4100427B39 /* LayerState.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = LayerState.h; sourceTree = "<group>"; };
 		04BE5431264D243D00427B39 /* LayerState.mm */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.objcpp; path = LayerState.mm; sourceTree = "<group>"; };
 		04BE5435264D2A7500427B39 /* RivePrivateHeaders.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = RivePrivateHeaders.h; sourceTree = "<group>"; };
+		04E2223F2BE3C85100D82668 /* ball_test.riv */ = {isa = PBXFileReference; lastKnownFileType = file; path = ball_test.riv; sourceTree = "<group>"; };
 		04ED72F0299C114000E8DE53 /* RiveViewModelTest.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = RiveViewModelTest.swift; sourceTree = "<group>"; };
 		04ED72F2299C115100E8DE53 /* empty_animation_state.riv */ = {isa = PBXFileReference; lastKnownFileType = file; path = empty_animation_state.riv; sourceTree = "<group>"; };
 		2A7079342726277C00C035A1 /* rive_renderer_view.hh */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.h; path = rive_renderer_view.hh; sourceTree = "<group>"; };
@@ -252,6 +254,7 @@
 			isa = PBXGroup;
 			children = (
 				0424A8752BD59435000A9A1C /* img_test.riv */,
+				04E2223F2BE3C85100D82668 /* ball_test.riv */,
 				0424A8732BD592F2000A9A1C /* audio_test.riv */,
 				041265272B0CC387009400EC /* hosted_assets.riv */,
 				041265292B0CCB8E009400EC /* embedded_assets.riv */,
@@ -525,6 +528,7 @@
 				04BE540D2649403600427B39 /* junk.riv in Resources */,
 				04BE54092649403600427B39 /* state_machine_configurations.riv in Resources */,
 				04BE54072649403600427B39 /* what_a_state.riv in Resources */,
+				04E222402BE3C85100D82668 /* ball_test.riv in Resources */,
 				0424A8762BD59435000A9A1C /* img_test.riv in Resources */,
 				04BE541A264A823000427B39 /* animationconfigurations.riv in Resources */,
 				04BE540E2649403600427B39 /* multiple_state_machines.riv in Resources */,
diff --git a/Tests/Assets/ball_test.riv b/Tests/Assets/ball_test.riv
new file mode 100644
index 00000000..e0e618da
Binary files /dev/null and b/Tests/Assets/ball_test.riv differ
diff --git a/Tests/RiveDelegatesTest.swift b/Tests/RiveDelegatesTest.swift
index 1bfc43ab..135c44cc 100644
--- a/Tests/RiveDelegatesTest.swift
+++ b/Tests/RiveDelegatesTest.swift
@@ -271,6 +271,50 @@ class DelegatesTest: XCTestCase {
         XCTAssertTrue((delegate.events.last as? RiveOpenUrlEvent)?.url != nil)
     }
     
+    func testNestedStateMachineLooping() throws {
+        // this test tests advancing a state machine with a one shot animation that ends after 1 second
+        // but the artboard has a nested artboard that is playing a looping animation via its state machine.
+        let delegate = DrDelegate()
+        let file = try RiveFile(testfileName: "ball_test")
+        let model = RiveModel(riveFile: file)
+        let viewModel = RiveViewModel(model, stateMachineName: "State Machine 1", autoPlay: true)
+        let view = viewModel.createRiveView()
+        
+        view.playerDelegate = delegate
+        view.stateMachineDelegate = delegate
+        XCTAssertEqual(true, viewModel.isPlaying)
+        view.advance(delta:0.1)
+        XCTAssertEqual(true, viewModel.isPlaying)
+        view.advance(delta:1.0)
+        XCTAssertEqual(true, viewModel.isPlaying)
+        view.advance(delta:0.1)
+        XCTAssertEqual(true, viewModel.isPlaying)
+    }
+    
+    func testNestedStateMachineOneShot() throws {
+        // this test tests advancing a state machine with a one shot animation that ends after 1 second
+        // but the artboard has a nested artboard that is playing a one shot animation via its state machine.
+        let delegate = DrDelegate()
+        let file = try RiveFile(testfileName: "ball_test")
+        let model = RiveModel(riveFile: file)
+        let viewModel = RiveViewModel(
+            model,
+            stateMachineName: "State Machine 1",
+            autoPlay: true,
+            artboardName: "Artboard 2"
+        )
+        let view = viewModel.createRiveView()
+        
+        view.playerDelegate = delegate
+        view.stateMachineDelegate = delegate
+        XCTAssertEqual(true, viewModel.isPlaying)
+        view.advance(delta:0.1)
+        XCTAssertEqual(true, viewModel.isPlaying)
+        view.advance(delta:1.0)
+        XCTAssertEqual(false, viewModel.isPlaying)
+    }
+    
+    
     func testStateMachineLayerStates() throws {
         let delegate = DrDelegate()
         let file = try RiveFile(testfileName: "what_a_state")
@@ -326,8 +370,12 @@ class DelegatesTest: XCTestCase {
         XCTAssertEqual(0, delegate.stateMachineStates.count)
         XCTAssertEqual(true, viewModel.isPlaying)
 
-        // animation came to an end inside this time period, this still means no state change
+        // state machine advance ends, but
+        // artboard advanced in this period, so we "keepGoing"
         view.advance(delta:0.4)
+        XCTAssertEqual(true, viewModel.isPlaying)
+        // animation is done
+        view.advance(delta:0.1)
         XCTAssertEqual(false, viewModel.isPlaying)
         XCTAssertEqual(0, delegate.stateMachineStates.count)
 
diff --git a/submodules/rive-cpp b/submodules/rive-cpp
index 331c05ab..efe03821 160000
--- a/submodules/rive-cpp
+++ b/submodules/rive-cpp
@@ -1 +1 @@
-Subproject commit 331c05ab77d786db6f9d969bee0928dc17952a2b
+Subproject commit efe038211e583aba2ab03cec538eae40b448ef45