diff --git a/data/etc/services.core.protolog.json b/data/etc/services.core.protolog.json
index 3e37237628004..8caff23539c31 100644
--- a/data/etc/services.core.protolog.json
+++ b/data/etc/services.core.protolog.json
@@ -3139,6 +3139,12 @@
       "group": "WM_DEBUG_WINDOW_TRANSITIONS",
       "at": "com\/android\/server\/wm\/Transition.java"
     },
+    "1494644409": {
+      "message": "  Rejecting as detached: %s",
+      "level": "VERBOSE",
+      "group": "WM_DEBUG_WINDOW_TRANSITIONS",
+      "at": "com\/android\/server\/wm\/Transition.java"
+    },
     "1495525537": {
       "message": "createWallpaperAnimations()",
       "level": "DEBUG",
diff --git a/services/core/java/com/android/server/wm/RecentsAnimation.java b/services/core/java/com/android/server/wm/RecentsAnimation.java
index 47129c242e84b..ba1cf8ae06df3 100644
--- a/services/core/java/com/android/server/wm/RecentsAnimation.java
+++ b/services/core/java/com/android/server/wm/RecentsAnimation.java
@@ -125,6 +125,11 @@ class RecentsAnimation implements RecentsAnimationCallbacks, OnRootTaskOrderChan
                 ProtoLog.d(WM_DEBUG_RECENTS_ANIMATIONS, "Updated config=%s",
                         targetActivity.getConfiguration());
             }
+        } else if (mDefaultTaskDisplayArea.getActivity(
+                ActivityRecord::occludesParent, false /* traverseTopToBottom */) == null) {
+            // Skip because none of above activities can occlude the target activity. The preload
+            // should be done silently in background without being visible.
+            return;
         } else {
             // Create the activity record. Because the activity is invisible, this doesn't really
             // start the client.
diff --git a/services/core/java/com/android/server/wm/Task.java b/services/core/java/com/android/server/wm/Task.java
index 709052e9832a2..c9b403c4ac337 100644
--- a/services/core/java/com/android/server/wm/Task.java
+++ b/services/core/java/com/android/server/wm/Task.java
@@ -3691,6 +3691,8 @@ class Task extends TaskFragment {
             }
             sb.append(" visible=");
             sb.append(shouldBeVisible(null /* starting */));
+            sb.append(" visibleRequested=");
+            sb.append(isVisibleRequested());
             sb.append(" mode=");
             sb.append(windowingModeToString(getWindowingMode()));
             sb.append(" translucent=");
diff --git a/services/core/java/com/android/server/wm/Transition.java b/services/core/java/com/android/server/wm/Transition.java
index 1ac16664244fa..11324d2c89c14 100644
--- a/services/core/java/com/android/server/wm/Transition.java
+++ b/services/core/java/com/android/server/wm/Transition.java
@@ -352,7 +352,7 @@ class Transition extends Binder implements BLASTSyncEngine.TransactionReadyListe
             final WallpaperWindowToken wt = mParticipants.valueAt(i).asWallpaperToken();
             if (wt != null && !wt.isVisibleRequested()) {
                 ProtoLog.v(ProtoLogGroup.WM_DEBUG_WINDOW_TRANSITIONS,
-                        "  Commit wallpaper becoming invisible: %s", ar);
+                        "  Commit wallpaper becoming invisible: %s", wt);
                 wt.commitVisibility(false /* visible */);
             }
         }
@@ -808,7 +808,11 @@ class Transition extends Binder implements BLASTSyncEngine.TransactionReadyListe
         // of participants that should always be reported even if they aren't top.
         for (WindowContainer wc : participants) {
             // Don't include detached windows.
-            if (!wc.isAttached()) continue;
+            if (!wc.isAttached()) {
+                ProtoLog.v(ProtoLogGroup.WM_DEBUG_WINDOW_TRANSITIONS,
+                        "  Rejecting as detached: %s", wc);
+                continue;
+            }
 
             final ChangeInfo changeInfo = changes.get(wc);