diff --git a/MobileGL/MG_Backend/DirectGLES/DirectGLES.cpp b/MobileGL/MG_Backend/DirectGLES/DirectGLES.cpp
index 4fb3a3d3..d74d900f 100644
--- a/MobileGL/MG_Backend/DirectGLES/DirectGLES.cpp
+++ b/MobileGL/MG_Backend/DirectGLES/DirectGLES.cpp
@@ -18879,7 +18879,12 @@ namespace MobileGL::MG_Backend::DirectGLES {
                 // producer), nothing it submitted still samples the image.
                 (void)WaitForCompletion();
             }
-            frame.Tracker.PublishFrame(fence);
+            // A session that writes images publishes every boundary as a write: an image it rendered
+            // into must not leave the frame without its generation moving.
+            if (frame.ImplicitSync)
+                frame.Tracker.PublishFrameAsWrite(fence);
+            else
+                frame.Tracker.PublishFrame(fence);
             frame.Id = g_readFrameIds.fetch_add(1, std::memory_order_relaxed) + 1;
         }
 
diff --git a/MobileGL/MG_Backend/DirectVulkan/Renderer/WireSharedImage.inc b/MobileGL/MG_Backend/DirectVulkan/Renderer/WireSharedImage.inc
index 43df6dfb..892a5b0a 100644
--- a/MobileGL/MG_Backend/DirectVulkan/Renderer/WireSharedImage.inc
+++ b/MobileGL/MG_Backend/DirectVulkan/Renderer/WireSharedImage.inc
@@ -637,7 +637,11 @@
         }
         // No fence (no export on this device): the frame's reads go unpublished - the file
         // comment says why that is the choice.
-        m_sharedImageReads.PublishFrame(fence);
+        // A session that writes images publishes every boundary as a write (PublishSharedImageAccesses).
+        if (m_sharedImageImplicitSync)
+            m_sharedImageReads.PublishFrameAsWrite(fence);
+        else
+            m_sharedImageReads.PublishFrame(fence);
     }
 
     void VulkanRenderer::AbandonSharedImageReads() {