diff --git a/docs/CHANGELOG.txt b/docs/CHANGELOG.txt
index c0953950e..3068c9521 100644
--- a/docs/CHANGELOG.txt
+++ b/docs/CHANGELOG.txt
@@ -77,6 +77,8 @@ Other Changes:
     trivial functions when stepping into.
   - Tagged various trivial functions using `IM_NODEBUGSTEP`: `ImVec2()`, `ImVec4()` etc.
     and various operators.
+  - IO: restore default clipboard/ime/shell platform handlers on ClearPlatformHandlers(), fixing
+    issues switching backends mid-session to one relying on default. (#9537, #8945, #2769) [@lstalmir]
 - ImDrawList:
   - Per-viewport FramebufferScale for Apple/Retina screen is applied to draw lists:
     - AA Fringe is scaled accordingly.
diff --git a/imgui.cpp b/imgui.cpp
index d44fe54dc..c926fc754 100644
--- a/imgui.cpp
+++ b/imgui.cpp
@@ -1387,10 +1387,9 @@ static void             WindowSettingsHandler_ApplyAll(ImGuiContext*, ImGuiSetti
 static void             WindowSettingsHandler_WriteAll(ImGuiContext*, ImGuiSettingsHandler*, ImGuiTextBuffer* buf);
 
 // Platform Dependents default implementation for ImGuiPlatformIO functions
+static void             InitializeDefaultPlatformHandlers(ImGuiPlatformIO& platform_io);
 static const char*      Platform_GetClipboardTextFn_DefaultImpl(ImGuiContext* ctx);
 static void             Platform_SetClipboardTextFn_DefaultImpl(ImGuiContext* ctx, const char* text);
-static void             Platform_SetImeDataFn_DefaultImpl(ImGuiContext* ctx, ImGuiViewport* viewport, ImGuiPlatformImeData* data);
-static bool             Platform_OpenInShellFn_DefaultImpl(ImGuiContext* ctx, const char* path);
 
 namespace ImGui
 {
@@ -4486,10 +4485,7 @@ void ImGui::Initialize()
     LocalizeRegisterEntries(GLocalizationEntriesEnUS, IM_COUNTOF(GLocalizationEntriesEnUS));
 
     // Setup default ImGuiPlatformIO clipboard/IME handlers.
-    g.PlatformIO.Platform_GetClipboardTextFn = Platform_GetClipboardTextFn_DefaultImpl;    // Platform dependent default implementations
-    g.PlatformIO.Platform_SetClipboardTextFn = Platform_SetClipboardTextFn_DefaultImpl;
-    g.PlatformIO.Platform_OpenInShellFn = Platform_OpenInShellFn_DefaultImpl;
-    g.PlatformIO.Platform_SetImeDataFn = Platform_SetImeDataFn_DefaultImpl;
+    InitializeDefaultPlatformHandlers(g.PlatformIO);
 
     // Setup session starting date
 #ifndef IMGUI_DISABLE_TIME_FUNCTIONS
@@ -16101,6 +16097,7 @@ void ImGuiPlatformIO::ClearPlatformHandlers()
     Platform_OpenInShellUserData = NULL;
     Platform_SetImeDataFn = NULL;
     Platform_ImeUserData = NULL;
+    InitializeDefaultPlatformHandlers(*this); // Rrevents losing the functionality provided by Platform_*_DefaultImpl on backend re-creation.
 }
 
 void ImGuiPlatformIO::ClearRendererHandlers()
@@ -16413,6 +16410,15 @@ static void Platform_SetImeDataFn_DefaultImpl(ImGuiContext*, ImGuiViewport*, ImG
 
 #endif // Default IME handlers
 
+// Setup default ImGuiPlatformIO clipboard/IME handlers
+static void InitializeDefaultPlatformHandlers(ImGuiPlatformIO& platform_io)
+{
+    platform_io.Platform_GetClipboardTextFn = Platform_GetClipboardTextFn_DefaultImpl;
+    platform_io.Platform_SetClipboardTextFn = Platform_SetClipboardTextFn_DefaultImpl;
+    platform_io.Platform_OpenInShellFn = Platform_OpenInShellFn_DefaultImpl;
+    platform_io.Platform_SetImeDataFn = Platform_SetImeDataFn_DefaultImpl;
+}
+
 //-----------------------------------------------------------------------------
 // [SECTION] METRICS/DEBUGGER WINDOW
 //-----------------------------------------------------------------------------