I’m attempting to create a resource that has a :datetime attribute:

attribute :pickup_time, :datetime do
  public? true
  allow_nil? false
end

The resource is setup with AshEvents and is set to log the events with the following code:

events do
    event_log(Api.Events.Event)
end

If I post to the creation endpoint with invalid data, like an integer for example, I get the expected error:

{
  "errors": [
    {
      "code": "invalid_attribute",
      "id": "6a24f1be-5c2c-497d-b860-246d8f7d0ecf",
      "meta": {},
      "status": "400",
      "title": "InvalidAttribute",
      "source": {
        "pointer": "/data/attributes/pickup_time"
      },
      "detail": "Could not cast input to datetime"
    }
  ],
  "jsonapi": {
    "version": "1.0"
  }
}

However if I send "pickup_time": "2025-07-15" or "pickup_time": "2025-07-15 00:00:00" then it seems to pass validation but (ash_events 0.4.2) lib/events/action_wrapper_helpers.ex:23 appears to throw a match error. (Value returned from dump_to_embedded is :error)

Full stack trace:

[error] ** (Ash.Error.Unknown) 
Bread Crumbs:
  > Exception raised in: Api.Shipments.Shipment.create

Unknown Error

* ** (MatchError) no match of right hand side value: :error
  (ash_events 0.4.2) lib/events/action_wrapper_helpers.ex:23: AshEvents.Events.ActionWrapperHelpers.dump_value/2
  (ash_events 0.4.2) lib/events/action_wrapper_helpers.ex:54: anonymous fn/2 in AshEvents.Events.ActionWrapperHelpers.create_event!/4
  (elixir 1.18.4) lib/enum.ex:1722: anonymous fn/3 in Enum.map/2
  (stdlib 6.2.2.1) maps.erl:860: :maps.fold_1/4
  (elixir 1.18.4) lib/enum.ex:2558: Enum.map/2
  (ash_events 0.4.2) lib/events/action_wrapper_helpers.ex:47: AshEvents.Events.ActionWrapperHelpers.create_event!/4
  (ash_events 0.4.2) lib/events/create_action_wrapper.ex:19: AshEvents.CreateActionWrapper.create/3
  (ash 3.5.26) lib/ash/actions/create/create.ex:309: anonymous fn/6 in Ash.Actions.Create.commit/3
  (ash 3.5.26) lib/ash/changeset/changeset.ex:4645: Ash.Changeset.run_around_actions/2
  (ash 3.5.26) lib/ash/changeset/changeset.ex:4181: anonymous fn/3 in Ash.Changeset.with_hooks/3
  (api 0.1.0) lib/api/repo.ex:2: anonymous fn/1 in Api.Repo."transaction (overridable 1)"/2
  (ecto 3.13.2) lib/ecto/repo/transaction.ex:7: anonymous fn/2 in Ecto.Repo.Transaction.transact/4
  (ecto_sql 3.13.2) lib/ecto/adapters/sql.ex:1458: anonymous fn/3 in Ecto.Adapters.SQL.checkout_or_transaction/4
  (db_connection 2.8.0) lib/db_connection.ex:1753: DBConnection.run_transaction/4
  (ash 3.5.26) lib/ash/changeset/changeset.ex:4179: anonymous fn/3 in Ash.Changeset.with_hooks/3
  (ash 3.5.26) lib/ash/changeset/changeset.ex:4323: anonymous fn/2 in Ash.Changeset.transaction_hooks/2
  (ash 3.5.26) lib/ash/changeset/changeset.ex:4166: Ash.Changeset.with_hooks/3
  (ash 3.5.26) lib/ash/actions/create/create.ex:261: Ash.Actions.Create.commit/3
  (ash 3.5.26) lib/ash/actions/create/create.ex:132: Ash.Actions.Create.do_run/4
  (ash 3.5.26) lib/ash/actions/create/create.ex:50: Ash.Actions.Create.run/4
    (ash_events 0.4.2) lib/events/action_wrapper_helpers.ex:23: AshEvents.Events.ActionWrapperHelpers.dump_value/2
    (ash_events 0.4.2) lib/events/action_wrapper_helpers.ex:54: anonymous fn/2 in AshEvents.Events.ActionWrapperHelpers.create_event!/4
    (elixir 1.18.4) lib/enum.ex:1722: anonymous fn/3 in Enum.map/2
    (stdlib 6.2.2.1) maps.erl:860: :maps.fold_1/4
    (elixir 1.18.4) lib/enum.ex:2558: Enum.map/2
    (ash_events 0.4.2) lib/events/action_wrapper_helpers.ex:47: AshEvents.Events.ActionWrapperHelpers.create_event!/4
    (ash_events 0.4.2) lib/events/create_action_wrapper.ex:19: AshEvents.CreateActionWrapper.create/3
    (ash 3.5.26) lib/ash/actions/create/create.ex:309: anonymous fn/6 in Ash.Actions.Create.commit/3
    (ash 3.5.26) lib/ash/changeset/changeset.ex:4645: Ash.Changeset.run_around_actions/2
    (ash 3.5.26) lib/ash/changeset/changeset.ex:4181: anonymous fn/3 in Ash.Changeset.with_hooks/3
    (api 0.1.0) lib/api/repo.ex:2: anonymous fn/1 in Api.Repo."transaction (overridable 1)"/2
    (ecto 3.13.2) lib/ecto/repo/transaction.ex:7: anonymous fn/2 in Ecto.Repo.Transaction.transact/4
    (ecto_sql 3.13.2) lib/ecto/adapters/sql.ex:1458: anonymous fn/3 in Ecto.Adapters.SQL.checkout_or_transaction/4
    (db_connection 2.8.0) lib/db_connection.ex:1753: DBConnection.run_transaction/4
    (ash 3.5.26) lib/ash/changeset/changeset.ex:4179: anonymous fn/3 in Ash.Changeset.with_hooks/3
    (ash 3.5.26) lib/ash/changeset/changeset.ex:4323: anonymous fn/2 in Ash.Changeset.transaction_hooks/2
    (ash 3.5.26) lib/ash/changeset/changeset.ex:4166: Ash.Changeset.with_hooks/3
    (ash 3.5.26) lib/ash/actions/create/create.ex:261: Ash.Actions.Create.commit/3
    (ash 3.5.26) lib/ash/actions/create/create.ex:132: Ash.Actions.Create.do_run/4
    (ash 3.5.26) lib/ash/actions/create/create.ex:50: Ash.Actions.Create.run/4

I created a small reproduction repo: https://github.com/thenhawke/ash_events_reporoduction