https://bugs.winehq.org/show_bug.cgi?id=40907
--- Comment #8 from David K. hevanen@googlemail.com --- Ah, thanks. I didn't know the --no-sandbox parameter existed.
With the parameter, the client immediately crashes in Windows XP mode, in Windows 7 mode it sometimes shows the "Updating..." window, however it stays at 0/0 MB downloaded and nothing else happens (the client should already be up-to-date, so technically this isn't supposed to appear anyway).