Push_redirect causing Registry not to find named process in LiveView

I have an endpoint /rooms/:room_code that looks up a value in an Elixir Registry based on the value of room_code, using the following code

def get_room(room_code) do
  name = {:via, Registry, {Coordinator.Rooms, room_code}}
  {:ok, Agent.get(name, & &1)}

If I enter localhost:4000/rooms/abcd it works fine, and it finds the room. However, if I use the following from a different LiveView

def handle_event("redirect", _, socket) do
  {:noreply, socket 
    |> push_redirect(to: Routes.room_show_path(socket, :show, socket.assigns.room_code))}

I get the error

[error] GenServer #PID<0.658.0> terminating
** (stop) exited in: GenServer.call({:via, Registry, {Coordinator.Rooms, "abcd"}}, {:get, #Function<4.87964163/1 in Skg.Edge.Coordinator.get_room/1>}, 5000)
    ** (EXIT) no process: the process is not alive or there's no process currently associated with the given name, possibly because its application isn't started

It’s probably something basic that I’m not understanding about LiveView lifecycles or something, but I’m having a hard time finding information on it. Anyone know why this is happening? Thanks in advance.

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