Game crashing on initial load - logs show "Failed to prefetch virtual memory (error: 8)"

Two weeks ago, I returned to the game after redownloading it on Steam because the standalone client download kept getting cancelled after every 3 or so per cent completion. However, during my campaign practice I experienced an unavoidable crash on 5 different characters without fail upon entering Halani Gates from Traitor's Passage. This was reproducible infallibly, and the log showed the same error every time, i.e., "Failed to prefetch virtual memory (error: 8)".
However, I thought the new patch would fix this even though this limited my practice runs to Act 1 only. Now that the new patch is here, it somehow got worse. I cannot even get to the login screen. The game just crashes while loading the login screen, and the error is the same as before.

I would like to play the game if I can start it. I appreciate the fact that it's in Early Access but currently I have No Access and would appreciate some help. Please let me know if I need to provide additional information for you to be able to help me.

What I have already tried:
1) Every possible settings change including renderer, when I could actually get to the settings
2) Verifying game files multiple times (Steam detected a random number of corrupted files every
single time and downloaded something but it did nothing to fix my problem)
3) Reinstalling multiple times
4) Running as admin
5) Running in compatibility mode for Windows 8
6) chkdsk /r
7) Increasing virtual memory (paging file) size manually