Ω-W1-T3 remediation: meter stays live and washed under the curve popup, not frozen

src/shell/instrument/editor_platform.cpp

@@ -77,13 +77,16 @@ void ReaSamplerEditor::invalidate() {
 
 void ReaSamplerEditor::invalidateMeter() {
     if (!childHwnd_) return;
-    // The meter is covered (Browse, the curve popup) or has nothing to draw (empty state) —
-    // ballistics still advance in onMeterTimer, but nothing on screen changed, so invalidating
-    // anything here would only buy a whole-client repaint of chrome/waveform/deck the meter
-    // never touches. Distinct from "bounds not resolved yet" below: this is a fact about what
-    // the face is showing, not about whether meterRects_ happens to be populated.
-    const bool meterOnScreen =
-        view_ == View::kSample && curvePopup_ == CurveTarget::kNone && !selectedId_.empty();
+    // The meter is covered (Browse) or has nothing to draw (empty state) — ballistics still
+    // advance in onMeterTimer, but nothing on screen changed, so invalidating anything here
+    // would only buy a whole-client repaint of chrome/waveform/deck the meter never touches.
+    // Distinct from "bounds not resolved yet" below: this is a fact about what the face is
+    // showing, not about whether meterRects_ happens to be populated. The curve popup does NOT
+    // cover the meter — its centered sheet tops out at 520x380 (curve_popup.h) against the
+    // meter's fixed right-anchored slot, at any resizable size — so the meter stays on screen
+    // (dimmed by the popup's wash, which paintMeterField reapplies to the field alone) and keeps
+    // its own rate rather than freezing under the sheet.
+    const bool meterOnScreen = view_ == View::kSample && !selectedId_.empty();
     if (!meterOnScreen) return;
 
     const Rect& f = meterRects_.field;