diff --git a/deps/db/src/logseq/db/common/initial_data.cljs b/deps/db/src/logseq/db/common/initial_data.cljs
index d32b95e880..7b9994301f 100644
--- a/deps/db/src/logseq/db/common/initial_data.cljs
+++ b/deps/db/src/logseq/db/common/initial_data.cljs
@@ -283,10 +283,10 @@
          vec
          rseq
          (keep (fn [d]
-                 (and (<= (:v d) today)
-                      (let [e (d/entity db (:e d))]
-                        (when (and (common-entity-util/journal? e) (:db/id e))
-                          e))))))))
+                 (when (<= (:v d) today)
+                   (let [e (d/entity db (:e d))]
+                     (when (and (common-entity-util/journal? e) (:db/id e))
+                       e))))))))
 
 (defn- get-structured-datoms
   [db]
diff --git a/deps/outliner/src/logseq/outliner/property.cljs b/deps/outliner/src/logseq/outliner/property.cljs
index 2402d905d5..e47857db9f 100644
--- a/deps/outliner/src/logseq/outliner/property.cljs
+++ b/deps/outliner/src/logseq/outliner/property.cljs
@@ -684,13 +684,14 @@
 
 (defn class-add-property!
   [conn class-id property-id]
-  (when-let [class (d/entity @conn class-id)]
-    (if (ldb/class? class)
-      (ldb/transact! conn
-                     [[:db/add (:db/id class) :logseq.property.class/properties property-id]]
-                     {:outliner-op :save-block})
-      (throw (ex-info "Can't add a property to a block that isn't a class"
-                      {:class-id class-id :property-id property-id})))))
+  (when-not (contains? #{:logseq.property/empty-placeholder} property-id)
+    (when-let [class (d/entity @conn class-id)]
+      (if (ldb/class? class)
+        (ldb/transact! conn
+                       [[:db/add (:db/id class) :logseq.property.class/properties property-id]]
+                       {:outliner-op :save-block})
+        (throw (ex-info "Can't add a property to a block that isn't a class"
+                        {:class-id class-id :property-id property-id}))))))
 
 (defn class-remove-property!
   [conn class-id property-id]
diff --git a/src/main/frontend/components/dnd.cljs b/src/main/frontend/components/dnd.cljs
index 42936ba33c..820076a9fd 100644
--- a/src/main/frontend/components/dnd.cljs
+++ b/src/main/frontend/components/dnd.cljs
@@ -35,9 +35,14 @@
      children]))
 
 (rum/defc items
-  [col {:keys [on-drag-end parent-node vertical? sort-by-inner-element?]
-        :or {vertical? true}}]
-  (let [ids (mapv :id col)
+  [col* {:keys [on-drag-end parent-node vertical? sort-by-inner-element?]
+         :or {vertical? true}}]
+  (assert (every? :id col*))
+  (when (some #(nil? (:id %)) col*)
+    (js/console.error "dnd-kit items without id")
+    (prn :col col*))
+  (let [col (filter :id col*)
+        ids (mapv :id col)
         items' (bean/->js ids)
         id->item (zipmap ids col)
         [items-state set-items] (rum/use-state items')
diff --git a/src/main/frontend/components/views.cljs b/src/main/frontend/components/views.cljs
index 10d5e2fe76..0cf26bc08b 100644
--- a/src/main/frontend/components/views.cljs
+++ b/src/main/frontend/components/views.cljs
@@ -1911,7 +1911,8 @@
         {pinned true unpinned false} (group-by (fn [item]
                                                  (contains? pinned-properties (:id item)))
                                                (remove (fn [column]
-                                                         (false? (get visible-columns (:id column))))
+                                                         (or (false? (get visible-columns (:id column)))
+                                                             (nil? (:name column))))
                                                        columns))
         group-by-property (or (:logseq.property.view/group-by-property view-entity)
                               (db/entity group-by-property-ident))
diff --git a/src/main/frontend/worker/db/validate.cljs b/src/main/frontend/worker/db/validate.cljs
index 539a92a36b..6fdf1c535c 100644
--- a/src/main/frontend/worker/db/validate.cljs
+++ b/src/main/frontend/worker/db/validate.cljs
@@ -7,22 +7,37 @@
 
 (defn- fix-invalid-blocks!
   [conn errors]
-  (let [tx-data (keep
+  (let [tx-data (mapcat
                  (fn [{:keys [entity dispatch-key]}]
                    (let [entity (d/entity @conn (:db/id entity))]
                      (cond
+                       (and (= dispatch-key :block) (nil? (:block/title entity)))
+                       [[:db/retractEntity (:db/id entity)]]
+
+                       (and (= dispatch-key :block) (nil? (:block/page entity)))
+                       (let [latest-journal-id (:db/id (first (ldb/get-latest-journals @conn)))
+                             page-id (:db/id (:block/page (:block/parent entity)))]
+                         (cond
+                           page-id
+                           [[:db/add (:db/id entity) :block/page page-id]]
+                           latest-journal-id
+                           [[:db/add (:db/id entity) :block/page latest-journal-id]
+                            [:db/add (:db/id entity) :block/parent latest-journal-id]]
+                           :else
+                           (js/console.error (str "Don't know where to put the block " (:db/id entity)))))
+
                        (:block.temp/fully-loaded? entity)
-                       [:db/retract (:db/id entity) :block.temp/fully-loaded?]
+                       [[:db/retract (:db/id entity) :block.temp/fully-loaded?]]
                        (and (:block/page entity) (not (:block/parent entity)))
-                       [:db/add (:db/id entity) :block/parent (:db/id (:block/page entity))]
+                       [[:db/add (:db/id entity) :block/parent (:db/id (:block/page entity))]]
                        (and (not (:block/page entity)) (not (:block/parent entity)) (not (:block/name entity)))
-                       [:db/retractEntity (:db/id entity)]
+                       [[:db/retractEntity (:db/id entity)]]
                        (and (= dispatch-key :property-value-block) (:block/title entity))
-                       [:db/retract (:db/id entity) :block/title]
+                       [[:db/retract (:db/id entity) :block/title]]
                        (and (ldb/class? entity) (not (:logseq.property.class/extends entity)))
-                       [:db/add (:db/id entity) :logseq.property.class/extends :logseq.class/Root]
+                       [[:db/add (:db/id entity) :logseq.property.class/extends :logseq.class/Root]]
                        (and (or (ldb/class? entity) (ldb/property? entity)) (ldb/internal-page? entity))
-                       [:db/retract (:db/id entity) :block/tags :logseq.class/Page]
+                       [[:db/retract (:db/id entity) :block/tags :logseq.class/Page]]
                        :else
                        nil)))
                  errors)]