It's the same for me. During the patching, I got an error message that debris.wav couldn't be opened. After the patch I started AH and watched the Preload Tex Memory with all the .tca files.
Then I get a crash to desktop before it completes. Watching it over again it's always the same 3 files in the update that kick me: WLDCYMP_512.TCA, WXTREP12_512.TCA, and XTC1_512.TCA.
Theres a thread in Tech Support about this too.