And this is why I uninstalled Testlive. Losing everything 4+ times was enough.
My suggestion is use the Conan Dedicated App to run your own version of Testlive. It can be set to auto-update and reset daily, so it will behave like a regular server and not suffer the limitations of Solo mode.
Updated with information from a @Toolguy post in THIS thread:
Instead of starting the Dedicated Server Launcher normally, open a command shell at the same location the launcher is located, and start it with the following command line
DedicatedServerLauncher1600.exe -steamid 931580