diff --git a/MobileGL/MG_Backend/DirectGLES/BackendObject_DirectGLES.cpp b/MobileGL/MG_Backend/DirectGLES/BackendObject_DirectGLES.cpp
index e1841903..a980ed35 100644
--- a/MobileGL/MG_Backend/DirectGLES/BackendObject_DirectGLES.cpp
+++ b/MobileGL/MG_Backend/DirectGLES/BackendObject_DirectGLES.cpp
@@ -898,7 +898,11 @@ namespace MobileGL::MG_Backend::DirectGLES {
         // display server runs the next session in this same process, so the twins this one built
         // - naming ids of the context just destroyed - must not answer for the next client's
         // handles (Managers.h, DropEveryTwinForEndedServerSession). Monolith keeps its twins.
-        if (MG_Config::Transport != MG_Config::TransportMode::Monolith) DropEveryTwinForEndedServerSession();
+        if (MG_Config::Transport != MG_Config::TransportMode::Monolith) {
+            DropEveryTwinForEndedServerSession();
+            // Review fix: and the swap interval it asked for (DirectGLES.h).
+            ForgetRequestedSwapInterval();
+        }
 #endif
     }
 
diff --git a/MobileGL/MG_Backend/DirectGLES/DirectGLES.cpp b/MobileGL/MG_Backend/DirectGLES/DirectGLES.cpp
index 8b5133d0..4c780454 100644
--- a/MobileGL/MG_Backend/DirectGLES/DirectGLES.cpp
+++ b/MobileGL/MG_Backend/DirectGLES/DirectGLES.cpp
@@ -16246,6 +16246,10 @@ namespace MobileGL::MG_Backend::DirectGLES {
         ApplyRequestedSwapInterval();
     }
 
+#if MOBILEGL_BUILD_DISAGGREGATED
+    void ForgetRequestedSwapInterval() { g_requestedSwapInterval = -1; }
+#endif
+
     Bool InitWindowSurface(NativeWindowType window) {
         if (!window) return false;
 
diff --git a/MobileGL/MG_Backend/DirectGLES/DirectGLES.h b/MobileGL/MG_Backend/DirectGLES/DirectGLES.h
index 9f67cb79..94d72f68 100644
--- a/MobileGL/MG_Backend/DirectGLES/DirectGLES.h
+++ b/MobileGL/MG_Backend/DirectGLES/DirectGLES.h
@@ -188,6 +188,13 @@ namespace MobileGL::MG_Backend::DirectGLES {
     // Applies (or defers until the window surface exists) the app-requested
     // eglSwapInterval on the native EGL surface.
     void SetSwapInterval(Int interval);
+#if MOBILEGL_BUILD_DISAGGREGATED
+    // P12 review fix: the swap interval an ended server session asked for is not the next one's.
+    // The request outlives the context on purpose (a surface re-created mid-session re-applies it),
+    // so the in-process display server's session end forgets it: the next session starts at the
+    // driver's default until it asks (BackendObject_DirectGLES's destructor under a transport).
+    void ForgetRequestedSwapInterval();
+#endif
     void SetEGLFuncsTable(const MG_External::EGLFunctionsTable& eglFuncs);
     void SetGLESFuncsTable(const MG_External::GLESFunctionsTable& glesFuncs);
     void SetGLESCapabilities(const MG_External::GLESCapabilities& capabilities);