Thanks for clarifying, I will keep that in mind.
I'm using the launcher from the github repository. There is a green button with the text "Code" in it. There I downloaded all files in a .zip-file as tera-launcher-master.zip and took the Launcher.exe from the "dist" folder.
As described in the guide, I moved this file to the folder to the client.
- - - Updated - - -
Thanks for clarifying, I will keep that in mind.
I'm using the launcher from the github repository. There is a green button with the text "Code" in it. There I downloaded all files in a .zip-file as tera-launcher-master.zip and took the Launcher.exe from the "dist" folder.
As described in the guide, I moved this file to the folder to the client.

After starting the launcher, a small "Loading" window appears, but it disappears shortly afterwards and only the icon in the taskbar is displayed.