diff --git a/backend/src/app/http/errors.clj b/backend/src/app/http/errors.clj
index 875bd5663..ce233b142 100644
--- a/backend/src/app/http/errors.clj
+++ b/backend/src/app/http/errors.clj
@@ -121,15 +121,14 @@
           cause (or parent-cause error)]
       (cond
         (= code :data-validation)
-        (let [explain (::sm/explain data)
-              explain (sm/humanize-data explain)]
+        (let [explain (ex/explain data)]
           (l/error :hint "data assertion error" :cause cause)
           {::yrs/status 500
            ::yrs/body   {:type :server-error
                          :code :assertion
                          :data (-> data
                                    (dissoc ::sm/explain)
-                                   (assoc :explain explain))}})
+                                   (cond-> explain (assoc :explain explain)))}})
 
         (= code :spec-validation)
         (let [explain (ex/explain data)]
@@ -231,7 +230,7 @@
 (defmethod handle-exception java.util.concurrent.CompletionException
   [cause request _]
   (let [cause' (ex-cause cause)]
-    (if (ex/error? cause)
+    (if (ex/error? cause')
       (handle-error cause' request cause)
       (handle-exception cause' request cause))))
 
diff --git a/backend/src/app/loggers/database.clj b/backend/src/app/loggers/database.clj
index 85e5c6e3f..9cdfdcf8c 100644
--- a/backend/src/app/loggers/database.clj
+++ b/backend/src/app/loggers/database.clj
@@ -40,32 +40,40 @@
   [{:keys [::l/context ::l/message ::l/props ::l/logger ::l/level ::l/cause] :as record}]
   (us/assert! ::l/record record)
 
-  (let [data (ex-data cause)
-        ctx  (-> context
-                 (assoc :tenant (cf/get :tenant))
-                 (assoc :host (cf/get :host))
-                 (assoc :public-uri (cf/get :public-uri))
-                 (assoc :logger/name logger)
-                 (assoc :logger/level level)
-                 (dissoc :request/params :value :params :data))]
-    (merge
-     {:context (-> (into (sorted-map) ctx)
-                   (pp/pprint-str :width 200 :length 50 :level 10))
-      :props   (pp/pprint-str props :width 200 :length 50)
-      :hint    (or (ex-message cause) @message)
-      :trace   (ex/format-throwable cause :data? false :explain? false :header? false :summary? false)}
+  (if (or (instance? java.util.concurrent.CompletionException cause)
+          (instance? java.util.concurrent.ExecutionException cause))
+    (-> record
+        (assoc ::trace (ex/format-throwable cause :data? false :explain? false :header? false :summary? false))
+        (assoc ::l/cause (ex-cause cause))
+        (record->report))
 
-     (when-let [params (or (:request/params context) (:params context))]
-       {:params (pp/pprint-str params :width 200 :length 50 :level 10)})
+    (let [data (ex-data cause)
+          ctx  (-> context
+                   (assoc :tenant (cf/get :tenant))
+                   (assoc :host (cf/get :host))
+                   (assoc :public-uri (cf/get :public-uri))
+                   (assoc :logger/name logger)
+                   (assoc :logger/level level)
+                   (dissoc :request/params :value :params :data))]
+      (merge
+       {:context (-> (into (sorted-map) ctx)
+                     (pp/pprint-str :width 200 :length 50 :level 10))
+        :props   (pp/pprint-str props :width 200 :length 50)
+        :hint    (or (ex-message cause) @message)
+        :trace   (or (::trace record)
+                     (ex/format-throwable cause :data? false :explain? false :header? false :summary? false))}
 
-     (when-let [value (:value context)]
-       {:value (pp/pprint-str value :width 200 :length 50 :level 10)})
+       (when-let [params (or (:request/params context) (:params context))]
+         {:params (pp/pprint-str params :width 200 :length 50 :level 10)})
 
-     (when-let [data (some-> data (dissoc ::s/problems ::s/value ::s/spec ::sm/explain :hint))]
-       {:data (pp/pprint-str data :width 200)})
+       (when-let [value (:value context)]
+         {:value (pp/pprint-str value :width 200 :length 50 :level 10)})
 
-     (when-let [explain (ex/explain data {:level 10 :length 50})]
-       {:explain explain}))))
+       (when-let [data (some-> data (dissoc ::s/problems ::s/value ::s/spec ::sm/explain :hint))]
+         {:data (pp/pprint-str data :width 200)})
+
+       (when-let [explain (ex/explain data {:level 10 :length 50})]
+         {:explain explain})))))
 
 (defn error-record?
   [{:keys [::l/level ::l/cause]}]
diff --git a/common/src/app/common/exceptions.cljc b/common/src/app/common/exceptions.cljc
index cb6388997..fa3b932fb 100644
--- a/common/src/app/common/exceptions.cljc
+++ b/common/src/app/common/exceptions.cljc
@@ -66,7 +66,7 @@
 
 (defn explain
   ([data] (explain data nil))
-  ([data {:keys [level length] :or {level 8 length 12} :as opts}]
+  ([data opts]
    (cond
      ;; NOTE: a special case for spec validation errors on integrant
      (and (= (:reason data) :integrant.core/build-failed-spec)
@@ -78,10 +78,10 @@
           (contains? data ::s/spec))
      (binding [s/*explain-out* expound/printer]
        (with-out-str
-         (s/explain-out (update data ::s/problems #(take length %)))))
+         (s/explain-out (update data ::s/problems #(take (:length opts 10) %)))))
 
      (contains? data ::sm/explain)
-     (sm/humanize-data (::sm/explain data) :level level :length length))))
+     (sm/humanize-data (::sm/explain data) opts))))
 
 #?(:clj
 (defn format-throwable
@@ -93,7 +93,7 @@
                             explain? true
                             chain? true
                             data-length 10
-                            data-level 8}}]
+                            data-level 5}}]
 
   (letfn [(print-trace-element [^StackTraceElement e]
             (let [class (.getClassName e)
@@ -123,7 +123,11 @@
 
           (print-trace-title [^Throwable cause]
             (print   " →  ")
-            (printf "%s: %s" (.getName (class cause)) (first (str/lines (ex-message cause))))
+            (printf "%s: %s" (.getName (class cause))
+                    (-> (ex-message cause)
+                        (str/lines)
+                        (first)
+                        (str/prune 100)))
 
             (when-let [^StackTraceElement e (first (.getStackTrace ^Throwable cause))]
               (printf " (%s:%d)" (or (.getFileName e) "") (.getLineNumber e)))