diff --git a/src/AcDream.App/Rendering/GameWindow.cs b/src/AcDream.App/Rendering/GameWindow.cs
index 3815737..7773441 100644
--- a/src/AcDream.App/Rendering/GameWindow.cs
+++ b/src/AcDream.App/Rendering/GameWindow.cs
@@ -7361,6 +7361,22 @@ public sealed class GameWindow : IDisposable
                     camBuildings, otherBuildings,
                     camera, frustum, playerLb, animatedIds,
                     visibility?.VisibleCellIds);
+
+                // Phase A8 fix (2026-05-28 visual-gate-#2 follow-up): LiveDynamic
+                // entities (player char, NPCs, dropped items, doors) were missing
+                // inside buildings because RenderInsideOutAcdream only renders the
+                // IndoorPass + OutdoorScenery partitions; LiveDynamic was implicitly
+                // excluded. The method's own header comment promised "LiveDynamic
+                // is drawn last in BOTH branches" but no call existed in the indoor
+                // path. Wire it here, after RenderInsideOutAcdream returns with
+                // stencil + state restored to defaults at its cleanup block. Same
+                // shape as the outdoor branch's Draw(All) for the LiveDynamic
+                // subset only.
+                _wbDrawDispatcher!.Draw(camera, _worldState.LandblockEntries, frustum,
+                    neverCullLandblockId: playerLb,
+                    visibleCellIds: visibility?.VisibleCellIds,
+                    animatedEntityIds: animatedIds,
+                    set: AcDream.App.Rendering.Wb.WbDrawDispatcher.EntitySet.LiveDynamic);
             }
             else
             {
diff --git a/src/AcDream.App/Rendering/Wb/EnvCellRenderer.cs b/src/AcDream.App/Rendering/Wb/EnvCellRenderer.cs
index 32e1a96..085c371 100644
--- a/src/AcDream.App/Rendering/Wb/EnvCellRenderer.cs
+++ b/src/AcDream.App/Rendering/Wb/EnvCellRenderer.cs
@@ -81,6 +81,16 @@ public sealed unsafe class EnvCellRenderer : IDisposable
     private static uint _currentVao;
     private static CullMode? _currentCullMode;
 
+    // Phase A8 A/B diagnostic (2026-05-28 visual-gate-#2 follow-up):
+    // ACDREAM_A8_DISABLE_CULL=1 forces every batch's effective CullMode to
+    // None (no face culling). Used to isolate whether the missing-floor
+    // symptom is caused by polygon-winding+CullMode interaction or by
+    // something else (lighting, depth, alpha). If the floor appears with
+    // this set, cull/winding is the bug. If not, look elsewhere. Static
+    // because it's read once at startup; no need to re-query per draw.
+    private static readonly bool _forceCullModeNone =
+        string.Equals(Environment.GetEnvironmentVariable("ACDREAM_A8_DISABLE_CULL"), "1", StringComparison.Ordinal);
+
     public bool NeedsPrepare { get; private set; } = true;
     public bool IsDisposed { get; private set; }
 
@@ -987,6 +997,10 @@ public sealed unsafe class EnvCellRenderer : IDisposable
         foreach (var group in batchesByCullMode)
         {
             var cullMode = (CullMode)(group.Key % 4);
+            // A/B diagnostic: ACDREAM_A8_DISABLE_CULL=1 overrides every batch
+            // to no-culling. Reveals whether floor-missing is a cull/winding
+            // bug or something else.
+            if (_forceCullModeNone) cullMode = CullMode.None;
             if (_currentCullMode != cullMode)
             {
                 SetCullMode(cullMode);