http://bugs.winehq.org/show_bug.cgi?id=32515
--- Comment #8 from Anastasius Focht focht@gmx.net 2013-12-04 09:31:40 CST --- Hello GyB,
you have to use 'append' mode because the game is multithreaded which causes interleaving trace output, effectively corrupting message lines.
">SpaceMarine_relay.log" should become ">>SpaceMarine_relay.log"
In general, I advise people to use 'append' mode in first place when generating logs. This avoids all the problems with corrupted messages due to multithreading/parallel process startup.
Regards