Yeah, you have to use the floris launcher like Syrup_Johnson said,
unfortunately, that means steam won't recognize the game so it doesn't work with Steam Overlay and achievements.
The reason you can't see the log is because through the original launcher you're not running it with Warband Script Extender so your log gets spammed with errors and it breaks. You can see this when you start your game, you quickly see some red errors
Morrowind3
Harley joined
Ohai thar! This is meh profile. Wat iz urs? ^_^ Ok, lets cut the crap. I really don't have anything to say here, roflmao.