diff --git a/src/com/android/launcher3/Launcher.java b/src/com/android/launcher3/Launcher.java
index d820448..61cd2f1 100644
--- a/src/com/android/launcher3/Launcher.java
+++ b/src/com/android/launcher3/Launcher.java
@@ -488,11 +488,15 @@
 
     @Override
     public void invalidateParent(ItemInfo info) {
-        FolderIconPreviewVerifier verifier = new FolderIconPreviewVerifier(getDeviceProfile().inv);
-        if (verifier.isItemInPreview(info.rank) && (info.container >= 0)) {
+        if (info.container >= 0) {
             View folderIcon = getWorkspace().getHomescreenIconByItemId(info.container);
-            if (folderIcon != null) {
-                folderIcon.invalidate();
+            if (folderIcon instanceof FolderIcon && folderIcon.getTag() instanceof FolderInfo) {
+                FolderIconPreviewVerifier verifier =
+                        new FolderIconPreviewVerifier(getDeviceProfile().inv);
+                verifier.setFolderInfo((FolderInfo) folderIcon.getTag());
+                if (verifier.isItemInPreview(info.rank)) {
+                    folderIcon.invalidate();
+                }
             }
         }
     }
diff --git a/src/com/android/launcher3/folder/FolderIcon.java b/src/com/android/launcher3/folder/FolderIcon.java
index 67495ea..71c9148 100644
--- a/src/com/android/launcher3/folder/FolderIcon.java
+++ b/src/com/android/launcher3/folder/FolderIcon.java
@@ -200,6 +200,7 @@
     private void setFolder(Folder folder) {
         mFolder = folder;
         mPreviewVerifier = new FolderIconPreviewVerifier(mLauncher.getDeviceProfile().inv);
+        mPreviewVerifier.setFolderInfo(mFolder.getInfo());
         updatePreviewItems(false);
     }
 
diff --git a/src/com/android/launcher3/folder/FolderIconPreviewVerifier.java b/src/com/android/launcher3/folder/FolderIconPreviewVerifier.java
index 5a27cd4..4c84e35 100644
--- a/src/com/android/launcher3/folder/FolderIconPreviewVerifier.java
+++ b/src/com/android/launcher3/folder/FolderIconPreviewVerifier.java
@@ -16,6 +16,8 @@
 
 package com.android.launcher3.folder;
 
+import android.util.Log;
+
 import com.android.launcher3.FolderInfo;
 import com.android.launcher3.InvariantDeviceProfile;
 
@@ -26,14 +28,20 @@
  */
 public class FolderIconPreviewVerifier {
 
+    private static final String TAG = "FolderPreviewVerifier";
+
     private final int mMaxGridCountX;
     private final int mMaxGridCountY;
     private final int mMaxItemsPerPage;
-    private final int[] mGridSize = new int[2];
+    private final int[] mGridSize = new int[] { 1, 1 };
 
+    private int mNumItemsInFolder;
     private int mGridCountX;
     private boolean mDisplayingUpperLeftQuadrant = false;
 
+    /**
+     * Note: must call {@link #setFolderInfo(FolderInfo)} manually for verifier to work.
+     */
     public FolderIconPreviewVerifier(InvariantDeviceProfile profile) {
         mMaxGridCountX = profile.numFolderColumns;
         mMaxGridCountY = profile.numFolderRows;
@@ -42,11 +50,14 @@
 
     public void setFolderInfo(FolderInfo info) {
         int numItemsInFolder = info.contents.size();
-        FolderPagedView.calculateGridSize(numItemsInFolder, 0, 0, mMaxGridCountX,
-                mMaxGridCountY, mMaxItemsPerPage, mGridSize);
-        mGridCountX = mGridSize[0];
+        if (numItemsInFolder != mNumItemsInFolder) {
+            FolderPagedView.calculateGridSize(numItemsInFolder, 0, 0, mMaxGridCountX,
+                    mMaxGridCountY, mMaxItemsPerPage, mGridSize);
+            mGridCountX = mGridSize[0];
 
-        mDisplayingUpperLeftQuadrant = numItemsInFolder > MAX_NUM_ITEMS_IN_PREVIEW;
+            mDisplayingUpperLeftQuadrant = numItemsInFolder > MAX_NUM_ITEMS_IN_PREVIEW;
+            mNumItemsInFolder = numItemsInFolder;
+        }
     }
 
     /**
@@ -62,6 +73,10 @@
      * @return True iff the icon is in the 2x2 upper left quadrant of the Folder.
      */
     public boolean isItemInPreview(int page, int rank) {
+        if (mGridSize[0] == 1) {
+            Log.w(TAG, "setFolderInfo not called before checking if item is in preview.");
+        }
+
         // First page items are laid out such that the first 4 items are always in the upper
         // left quadrant. For all other pages, we need to check the row and col.
         if (page > 0 || mDisplayingUpperLeftQuadrant) {
diff --git a/src/com/android/launcher3/folder/FolderPagedView.java b/src/com/android/launcher3/folder/FolderPagedView.java
index 06eaf38..d4ce6dd 100644
--- a/src/com/android/launcher3/folder/FolderPagedView.java
+++ b/src/com/android/launcher3/folder/FolderPagedView.java
@@ -321,6 +321,7 @@
 
         FolderIconPreviewVerifier verifier = new FolderIconPreviewVerifier(
                 Launcher.getLauncher(getContext()).getDeviceProfile().inv);
+        verifier.setFolderInfo(mFolder.getInfo());
         rank = 0;
         for (int i = 0; i < itemCount; i++) {
             View v = list.size() > i ? list.get(i) : null;
diff --git a/src/com/android/launcher3/model/LoaderTask.java b/src/com/android/launcher3/model/LoaderTask.java
index a27e2c2..2b20b08 100644
--- a/src/com/android/launcher3/model/LoaderTask.java
+++ b/src/com/android/launcher3/model/LoaderTask.java
@@ -340,8 +340,6 @@
                 Intent intent;
                 String targetPkg;
 
-                FolderIconPreviewVerifier verifier =
-                        new FolderIconPreviewVerifier(mApp.getInvariantDeviceProfile());
                 while (!mStopped && c.moveToNext()) {
                     try {
                         if (c.user == null) {
@@ -461,8 +459,7 @@
                                 c.markRestored();
                             }
 
-                            boolean useLowResIcon = !c.isOnWorkspaceOrHotseat() &&
-                                    !verifier.isItemInPreview(c.getInt(rankIndex));
+                            boolean useLowResIcon = !c.isOnWorkspaceOrHotseat();
 
                             if (c.restoreFlag != 0) {
                                 // Already verified above that user is same as default user
@@ -745,24 +742,25 @@
                 }
             }
 
+            // Sort the folder items, update ranks, and make sure all preview items are high res.
             FolderIconPreviewVerifier verifier =
                     new FolderIconPreviewVerifier(mApp.getInvariantDeviceProfile());
-            // Sort the folder items and make sure all items in the preview are high resolution.
             for (FolderInfo folder : mBgDataModel.folders) {
                 Collections.sort(folder.contents, Folder.ITEM_POS_COMPARATOR);
                 verifier.setFolderInfo(folder);
+                int size = folder.contents.size();
 
-                int numItemsInPreview = 0;
-                for (ShortcutInfo info : folder.contents) {
+                // Update ranks here to ensure there are no gaps caused by removed folder items.
+                // Ranks are the source of truth for folder items, so cellX and cellY can be ignored
+                // for now. Database will be updated once user manually modifies folder.
+                for (int rank = 0; rank < size; ++rank) {
+                    ShortcutInfo info = folder.contents.get(rank);
+                    info.rank = rank;
+
                     if (info.usingLowResIcon()
                             && info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION
                             && verifier.isItemInPreview(info.rank)) {
                         mIconCache.getTitleAndIcon(info, false);
-                        numItemsInPreview++;
-                    }
-
-                    if (numItemsInPreview >= MAX_NUM_ITEMS_IN_PREVIEW) {
-                        break;
                     }
                 }
             }