https://bugs.winehq.org/show_bug.cgi?id=32092
--- Comment #84 from Graham libgradev@gmail.com --- Fixed here too. Had to re-install the game to test, it had been so long!
Issue appears to have been resolved (as others have mentioned) from within SWTOR - as both 1.7.21-swotor and 1.9.5-staging are working fine. Testing was done with PoL and required swtor_fix.exe running or the char screen never loads.
As an aside: To get sound working in newer Wine versions I had to set the backend to ALSA (https://wiki.winehq.org/Useful_Registry_Keys).
Archlinux.