diff --git a/Makefile.plugins.mk b/Makefile.plugins.mk
index 6c5ebf32..780dc20a 100644
--- a/Makefile.plugins.mk
+++ b/Makefile.plugins.mk
@@ -693,9 +693,9 @@ $(au): $(OBJS_DSP) $(BUILD_DIR)/DistrhoPluginMain_AU.cpp.o
 endif
 	-@mkdir -p $(shell dirname $@)
 	@echo "Creating AU component for $(NAME)"
-	$(SILENT)$(CXX) $^ $(BUILD_CXX_FLAGS) $(LINK_FLAGS) $(EXTRA_LIBS) $(EXTRA_DSP_LIBS) $(EXTRA_UI_LIBS) $(DGL_LIBS) -framework AudioToolbox $(SHARED) $(SYMBOLS_AU) -o $@
+	$(SILENT)$(CXX) $^ $(BUILD_CXX_FLAGS) $(LINK_FLAGS) $(EXTRA_LIBS) $(EXTRA_DSP_LIBS) $(EXTRA_UI_LIBS) $(DGL_LIBS) -framework AudioToolbox -framework CoreFoundation $(SHARED) $(SYMBOLS_AU) -o $@
 
-# -framework AudioUnit -framework Foundation
+# -framework AudioUnit
 
 # ---------------------------------------------------------------------------------------------------------------------
 # Export
diff --git a/cmake/DPF-plugin.cmake b/cmake/DPF-plugin.cmake
index 3a4cb2b1..ad738ec7 100644
--- a/cmake/DPF-plugin.cmake
+++ b/cmake/DPF-plugin.cmake
@@ -561,8 +561,13 @@ function(dpf__build_au NAME HAS_UI)
   dpf__add_ui_main("${NAME}-au" "au" "${HAS_UI}")
   dpf__set_module_export_list("${NAME}-au" "au")
   find_library(APPLE_AUDIOTOOLBOX_FRAMEWORK "AudioToolbox")
+  find_library(APPLE_COREFOUNDATION_FRAMEWORK "CoreFoundation")
   target_compile_options("${NAME}-au" PRIVATE "-ObjC++")
-  target_link_libraries("${NAME}-au" PRIVATE "${NAME}-dsp" "${NAME}-ui" "${APPLE_AUDIOTOOLBOX_FRAMEWORK}")
+  target_link_libraries("${NAME}-au" PRIVATE
+    "${NAME}-dsp"
+    "${NAME}-ui"
+    "${APPLE_AUDIOTOOLBOX_FRAMEWORK}"
+    "${APPLE_COREFOUNDATION_FRAMEWORK}")
   set_target_properties("${NAME}-au" PROPERTIES
     LIBRARY_OUTPUT_DIRECTORY "${PROJECT_BINARY_DIR}/bin/${NAME}.component/Contents/MacOS/$<0:>"
     ARCHIVE_OUTPUT_DIRECTORY "${PROJECT_BINARY_DIR}/obj/au/$<0:>"
diff --git a/distrho/src/DistrhoPluginAU.cpp b/distrho/src/DistrhoPluginAU.cpp
index b02e9938..f090b476 100644
--- a/distrho/src/DistrhoPluginAU.cpp
+++ b/distrho/src/DistrhoPluginAU.cpp
@@ -22,7 +22,7 @@
 #include "DistrhoPluginInternal.hpp"
 #include "../DistrhoPluginUtils.hpp"
 
-#if DISTRHO_PLUGIN_HAS_UI
+#if DISTRHO_PLUGIN_WANT_MIDI_INPUT
 # include "../extra/RingBuffer.hpp"
 #endif
 
@@ -239,6 +239,9 @@ static constexpr const requestParameterValueChangeFunc requestParameterValueChan
 #if ! DISTRHO_PLUGIN_WANT_STATE
 static constexpr const updateStateValueFunc updateStateValueCallback = nullptr;
 #endif
+#if DISTRHO_PLUGIN_WANT_TIMEPOS
+static constexpr const double kDefaultTicksPerBeat = 1920.0;
+#endif
 
 typedef std::map<const String, String> StringMap;
 
@@ -352,9 +355,7 @@ public:
 
        #if DISTRHO_PLUGIN_WANT_TIMEPOS
         std::memset(&fHostCallbackInfo, 0, sizeof(fHostCallbackInfo));
-
-        // ticksPerBeat is not possible with AU
-        fTimePosition.bbt.ticksPerBeat = 1920.0;
+        fTimePosition.bbt.ticksPerBeat = kDefaultTicksPerBeat;
        #endif
     }
 
@@ -384,6 +385,7 @@ public:
        #endif
        #if DISTRHO_PLUGIN_WANT_TIMEPOS
         fTimePosition.clear();
+        fTimePosition.bbt.ticksPerBeat = kDefaultTicksPerBeat;
        #endif
         return noErr;
     }
@@ -1578,6 +1580,7 @@ public:
        #endif
        #if DISTRHO_PLUGIN_WANT_TIMEPOS
         fTimePosition.clear();
+        fTimePosition.bbt.ticksPerBeat = kDefaultTicksPerBeat;
        #endif
         return noErr;
     }
@@ -1936,12 +1939,13 @@ private:
             Float32 f1 = 4.f; // initial value for beats per bar
             Float64 g1 = 0.0;
             Float64 g2 = 0.0;
-            UInt32 u1 = 0.0;
+            UInt32 u1 = 0;
 
             if (fHostCallbackInfo.musicalTimeLocationProc != nullptr
                 && fHostCallbackInfo.musicalTimeLocationProc(fHostCallbackInfo.hostUserData,
                                                              nullptr, &f1, &u1, nullptr) == noErr)
             {
+                f1 /= u1;
                 fTimePosition.bbt.beatsPerBar = f1;
                 fTimePosition.bbt.beatType    = u1;
             }
@@ -1984,7 +1988,7 @@ private:
                 fTimePosition.frame = 0;
             }
 
-            fTimePosition.bbt.barStartTick = fTimePosition.bbt.ticksPerBeat *
+            fTimePosition.bbt.barStartTick = kDefaultTicksPerBeat *
                                              fTimePosition.bbt.beatsPerBar *
                                              (fTimePosition.bbt.bar - 1);
 
diff --git a/distrho/src/DistrhoUIAU.mm b/distrho/src/DistrhoUIAU.mm
index 36adaa9b..d3abdaa1 100644
--- a/distrho/src/DistrhoUIAU.mm
+++ b/distrho/src/DistrhoUIAU.mm
@@ -155,20 +155,12 @@ public:
 
     void postSetup()
     {
-        if (fUI.isResizable())
-        {
-            // [view setAutoresizingMask:NSViewNotSizable];
-            [fParentView setAutoresizesSubviews:YES];
-        }
-        else
-        {
-            [fParentView setAutoresizingMask:NSViewNotSizable];
-            [fParentView setAutoresizesSubviews:NO];
-        }
-
-        // NSView* const uiView = reinterpret_cast<NSView*>(fUI.getNativeWindowHandle());
+        const NSSize size = NSMakeSize(fUI.getWidth(), fUI.getHeight());
+        NSView* const uiView = reinterpret_cast<NSView*>(fUI.getNativeWindowHandle());
 
-        [fParentView setFrameSize:NSMakeSize(fUI.getWidth(), fUI.getHeight())];
+        [fParentView setAutoresizesSubviews:fUI.isResizable()];
+        [fParentView setFrameSize:size];
+        [uiView setFrameSize:size];
     }
 
 private:
diff --git a/examples/Meters/ExampleUIMeters.cpp b/examples/Meters/ExampleUIMeters.cpp
index 4318b7e5..0f33eff2 100644
--- a/examples/Meters/ExampleUIMeters.cpp
+++ b/examples/Meters/ExampleUIMeters.cpp
@@ -41,9 +41,7 @@ public:
           fColorValue(0),
           // init meter values to 0
           fOutLeft(0.0f),
-          fOutRight(0.0f),
-          // FIXME
-          fNeedsRepaint(false)
+          fOutRight(0.0f)
     {
         setGeometryConstraints(32, 128, false);
     }
@@ -73,9 +71,7 @@ protected:
             if (fOutLeft != value)
             {
                 fOutLeft = value;
-                // FIXME
-                // repaint();
-                fNeedsRepaint = true;
+                repaint();
             }
             break;
 
@@ -88,9 +84,7 @@ protected:
             if (fOutRight != value)
             {
                 fOutRight = value;
-                // FIXME
-                // repaint();
-                fNeedsRepaint = true;
+                repaint();
             }
             break;
         }
@@ -204,15 +198,6 @@ protected:
         return true;
     }
 
-    void uiIdle() override
-    {
-        if (fNeedsRepaint)
-        {
-            fNeedsRepaint = false;
-            repaint();
-        }
-    }
-
     // -------------------------------------------------------------------------------------------------------
 
 private:
@@ -228,9 +213,6 @@ private:
     */
     float fOutLeft, fOutRight;
 
-    // FIXME this shouldnt be needed!
-    bool fNeedsRepaint;
-
    /**
       Update color if needed.
     */
@@ -251,9 +233,7 @@ private:
             break;
         }
 
-        // FIXME
-        // repaint();
-        fNeedsRepaint = true;
+        repaint();
     }
 
    /**