desk_api.ex

#line 23 is the Poison encode
    payload = %{
      type: "email",
      status: "open",
      labels: ["Redacted" | issue.tags],
      message: %{
        subject: "Issue reported from client",
        body: body(issue, user.name),
        from: user.username,
        to: "redacted@email.com",
        subject: "Issue reported from client",
        direction: "in"
      }
    } |> Poison.encode!

error.ex

Server: core.videonor.net:80 (http)
Request: POST /api/v1/issues
** (exit) an exception was raised:
    ** (FunctionClauseError) no function clause matching in Poison.Encoder.List."-encode/3-lists^foldr/2-1-"/3
        (poison) lib/poison/encoder.ex:233: Poison.Encoder.List."-encode/3-lists^foldr/2-1-"(#Function<1.62272487/2 in Poison.Encoder.List.encode/3>, [], nil)
        (poison) lib/poison/encoder.ex:233: Poison.Encoder.List."-encode/3-lists^foldr/2-1-"/3
        (poison) lib/poison/encoder.ex:233: Poison.Encoder.List.encode/3
        (poison) lib/poison/encoder.ex:213: anonymous fn/4 in Poison.Encoder.Map.encode/3
        (poison) lib/poison/encoder.ex:214: Poison.Encoder.Map."-encode/3-lists^foldl/2-0-"/3
        (poison) lib/poison/encoder.ex:214: Poison.Encoder.Map.encode/3
        (poison) lib/poison.ex:41: Poison.encode!/2
        (core) web/service/desk_api.ex:23: Core.DeskApi.create_email_case/2