Zoom Crash Starts at Chapter 3

[Chancellor23]

Have really been enjoying this game. Completed through Chapter 2, including first three Challenge Rooms. Have encountered a problem at the beginning of Chapter 3: If I right-click the mouse (zoom weapon view), the game crashes, displaying a bunch of script errors. This has not happened before in this game.

Have searched these forums. Purchased the Aspyr version and updated, using Aspyr's Patch v1.2. Have tried Ztorm's widescreen FOV Lscripts fix, which was supposed to fix this issue. Nothing has worked. Right-clicking to zoom the rifle sight worked perfectly until Chapter 3. Now, the game simply crashes.

Has anybody else experienced this? Does anyone know of a fix for this problem? It seems odd that the problem didn't surface until Chapter 3.