In the latest pre-release, we have disabled and removed the built in Tailscale support. This has been done in the interest of security.
You can still access your Channels DVR Server host perfectly fine with Tailscale installed on your host.
For a while now, due to techcnical difficulties, we have been unable to ensure that the latest version of Tailscale is running inside of Channels DVR Server. In light of the current climate of security concerns happening across the Internet, programming languages, and open systems, we have taken the steps to remove Tailscale rather than let you run a pottentially insecure system.
If you rely on Tailscale for remote streaming, simply install Tailscale directly on the host system your Channels DVR Server is installed on. Connecting to your server will be the same as it was with the built in Tailscale.
We hope you understand why we're doing this and ideally we'll get Tailscale built back into Channels DVR Server soon.