I'm currently collecting errors with the new launcher, will update it later this week, but the version in this thread fix the "closing without error" bug.
Ah.. that's really strange, there's indeed one function I use wich is date.parse that can affect how date/time is read, but never tried with the dateformat you gave me, I'll have a look when I can. The second error might be something completely different, some other people got an error like that. Look this thread and try the modified version of the launcher https://forum.cs-hackers.com/Thread-Bug-...7#pid44227
That's weird, and do you have a second error message or not ? Try looking in windows event viewer -> application -> find an error looking like ".NET runtime"