Hello LifeGuan,
Could you share your system specs like described here:
http://brightrockgames.userecho.com/topics/118-how-to-submit-a-bug-ticket/

Your log suddenly ends and there was an invalid memory access caused by "gameoverlayrenderer64.dll" (Steam Overlay).
But before that there were some errors eg.
"[Coherent Browser] (Warning) PID: 9160 | 416 09:17:25.542810 Shared textures are not properly supported on Windows 7 without Service Pack 1. Please install the latest service pack."
And then the output_log.txt written in the crash folder was even corrupted.

That's why we wonder which OS you have installed, but also how the other specs look.

However right now it looks like Steam Overlay is causing it, so I would suggest to try to disable it to see if it fixes the issue:
http://forums.steampowered.com/forums/showthread.php?t=3168263

Hope this helps!

We will get this sorted for next hotifx.
We plan to not translate the map names but the descriptions.
The translation keys will be:

map_crucible_memento_moor_desc

map_crucible_snowedunder_desc

map_crucible_fireside_desc
map_crucible_gullet_gulch_desc

map_crucible_mantle_pieces_desc
map_crucible_lonehenge_desc

We will take a deeper look tomorrow.
Thanks for the saves, logs and detailed description how to reproduce.
This can make finding the root cause way easier for us.
Cheers

We got meanwhile an internal ticket for that issue as well which got exported.
(http://brightrockgames.userecho.com/topics/1686-c12-voice-lines-are-just-messed-up/)

On which map did this happen?

I would at least not see how.
The translation files are parsed on game load and only again if set in the options and in this process any additional columns or anything which is not part of the key-text-pairs gets ignored.
From then the files are untouched and their keys are just stored in a dictionary in memory.
So there is no reason that this could have any impact at least theoretically.

Glad to hear and thanks for reporting back!

You are only missing 4 cutscenes of this kind: a start and an ending cutscene of each of both campaigns.
All other scenes are in-game or in-campaign-menu I don't like to spoil but can say most things are done in a way that should work for you which are not disabled by this option.

Enjoy :)

A Solution can be found here:
http://brightrockgames.userecho.com/topics/1096-missing-invisible-or-laggy-ui/

Cheers