Steam patches just fine to grab all the new files.
When the game goes to restart, no window is started.
No window ever appears.
Steam's build ID is 461948.
The first validation had about 600 game files that failed.
The second one had 2 that failed.
Launching the game through command line as a standalone [how I would normally access my alt] successfully logs in.
Something pushed to steam for the launcher options is incorrect.
RESOLVED
Solution Post. Steam wasn't sending the correct version and was causing an update-loop.
The screen is maximized, it's in a much larger picture for some players with smaller monitors....