https://bugs.winehq.org/show_bug.cgi?id=41388
--- Comment #3 from fjfrackiewicz@gmail.com --- (In reply to Dan Williams from comment #2)
Oh, sorry, I didn't even realize... so, I just switched my default Windows version to 7 and the behavior of Sling.exe is the same. Output is the same as before.
Hmmmm. One thing for sure is that the program is crashing because of something going on with the msvcrt or msvcrt120 component since it's the first mentioned in the backtrace:
Backtrace: =>0 0x7c09a1c6 MSVCRT_wcslen+0x6() in msvcr120 (0x0033dc28)
Maybe a WINEDEBUG=+msvcrt log would help in this case? Not sure so perhaps someone who works on Wine will see this...
Perhaps the black screen is connected to the application crashing at msvcrt before it can possibly get to the point where it loads the graphic assets that would allow you to see the login or list of channels.