Hi
I was successfully working for several weeks now with Unreal Engine Version 4.15.1 without any issues. Yesterday, I noticed that the Unreal Editor won’t launch anymore right away when clicking on the „Launch“-button on the EpicGamesLauncher-Screen. At first, it took maybe 3 tries to get it to start (pressed it 3 times, got one editor to open up), then next time took maybe 10 tries and now it just doesn’t start up at all. The yellow „Launch“-button turns grey for a few seconds stating „Launching …“ and then turns back yellow to „Launch“. In the Task-Manager, the Unreal Engine-process is running at ~ 15% CPU- and with 9.7% RAM-load. No data- or network-load. I can start up the Editor several times and all processes have exactly the same loads: 15% for CPU, 9.7% for RAM and 0 for data and network. Nothing happens at all, I’ve tried waiting for hours. Older versions of the Engine won’t start either.
I’ve also tried to verify the client several times and even re-installed everything (with rebooting the whole system), including the EpicGamesLauncher, yet to another hard-disk and then starting a whole new, clean, empty project. No difference. I’ve started the EpicGamesLauncher both as an administrator and without being an administrator. I’ve tried using the launchers directly from the „C:\Program Files (x86)\Epic Games\Launcher\Engine\Binaries\Win64“-directory, with and without administrator. I’ve tried opening a project from a backup-folder, no difference.
I have the newest GPU-drivers, the newest Microsoft Visual C++ 2015 redist, the newest Windows 10 Updates (except the Creators Update, which isn’t available yet through the normal update process). All other drivers are up to date as well. I turned on and off my Antivirus and Firewall (Comodo Internet Security). I created a new Windows User-Profile as suggested in this thread: UE 4.15 editor not starting - Installation & Setup - Unreal Engine Forums
Nothing helped.
I hope a solution can be found for this problem as soon as possible.
EDIT: Could solve the problem by installing the newest version of Microsofts free “Visual Studio 2017 Community Edition”.
Best regards
Balian