Upon updating I got this in console

[Monument Finder] Tunnel type not implemented: intersection-bb5-n

This would have printed before, you just wouldn't notice it because it would be buried in the logs.

This happens because there are some tunnel prefabs for which I haven't hard coded the bounds, which means you won't be able to spawn addons in those tunnels (using Monument Addons for example). I've known about there being some unhandled tunnel prefabs for a few months but haven't gotten around to placing them in RustEdit to verify the bounds.

Thank you :)