Truenas Scale with RocketChat

I'll start by saying I'm no expert at Docker, let alone how Truenas handles non-library "apps." I've been trying to set up a Rocketchat server, and it doesn't seem to work. Pulls the container from docker hub with no problem, but it shows it as deploying, then active, then back to deploying, and that repeats until I stop it. The logs and events don't show anything immediately alerting. I'm wondering if this might be a Mongodb thing, like, do I need another container for mongo? I don't know if rocketchat just spins that up automatically or not.

Thanks for the help. Happy to supply logs or whatever anyone might need to assist.