Minecraft Server Timing Out

[lanlawr 0]

I am trying to setup a minecraft server that is accessible through AirVPN because I am behind a carrier grade NAT and my ISP does not offer static IP options. I think I have setup the AirVPN port forwarding properly and set the server to offline mode so it does not try to authenticate because I've read that the auth servers block traffic from VPNs. When I try to connect to the server, it says 'Joining World' for a bit before saying it times out. The server console screen confirms it was trying to connect because it says the connection times out as well. Is there something simple I am missing? I have had success setting up other game servers in a similar fashion. I am running the OpenVPN docker on Unraid, with the Minecraft docker using the OpenVPN docker for its networking.