Invalid fiddle

{:fiddle/ident nil,
 :cljs.spec.alpha/problems
 ({:path [:blank],
   :pred (cljs.core/fn [%] (cljs.core/contains? % :fiddle/ident)),
   :val
   {:db/id 2012,
    :fiddle/type :blank,
    :fiddle/markdown "### ",
    :fiddle/renderer
    "(let [{:keys [:hypercrud.browser/fiddle]} ctx]\n  [:div.container-fluid props\n   [hyperfiddle.ui/markdown (:fiddle/markdown @fiddle) ctx]\n   [hyperfiddle.ui/result val ctx {}]])",
    :fiddle/links ()}, 
   :via [:hyperfiddle/fiddle], 
   :in []})}