Please be aware that the TST server will shut down tomorrow November 13 at 10:00 AM (UTC). Thank you all for your participation. Help us to improve the new aircraft carrier gameplay by leaving your feedback in the current thread.
Guys, on the CV rework discord someone mentioned, that if you have the WGC client already running, you need to close it, restart it.
I did that and now the TST server is in the list for me, installing as I write this.
Sorry for recommending my own post but this may be helpful