Trackrise

Hello! I can't seem to get Sons of the Forest to work using Tailscale and Direct Join. I currently have 4 other ich777 servers running (Satisfactory, Minecraft, Valheim and Palworld), and they are all running Tailscale and are all running great- we haven't had to configure port forwarding on our routers thanks to the Tailnet, and they are very easy to join, even if in some games they appear offline. But for some reason, following the exact same procedure that I did for the other 4 games, Sons of the Forest just will not let me join the server. I know we have the correct ports configured in the container (8766, 9700, 27016, all UDP), and the server appears to be running just fine as it has been continuously auto saving. I can also ping the container just fine from another machine on the Tailnet. Whenever I click "Direct" in Sons of the Forest, I just get "Game server not found". Has anyone been able to figure out a similar setup with Sons of the Forest?