Because you’re spawning a task that then spawns the server you’re hitting a race condition. The named server doesn’t exist yet. Rather than using a timer (which either wastes time or cuts it too close and has a chance of failure), you can try GenServer.whereis. If it returns nil then the named server hasn’t been started yet. You could also have the spawned task send a message back to this process signaling that it has started the server, then use a receive in this process to wait before casting. That last one is what I would probably do.
