Stack Overflow Exception - Crash on Same Date

[Cryoshakespeare]

Hi,

I'm having a bit of a problem with a consistent crash issue I'm running into. Essentially after playing a game for some time, I invariably hit a wall where the game crashes on the same date. Honestly, which date it is doesn't really matter, rolling back to a save 20 years before just slightly alters the date of the crash but it's overall pretty much the same behavior.

The exception log is pretty much consistently this story:

Spoiler: Exception (abbreviated)

Application: EUIV
Version: EU4 v1.29.2.0 Manchu.206991c240
Date/Time: 2019-10-17 12:33:25

Unhandled Exception C00000FD (EXCEPTION_STACK_OVERFLOW) at address 0x00007FF764CDF678

Stack Trace:
1 eu4.exe (function-name not available) (+ 0)
2 eu4.exe (function-name not available) (+ 0)
3 eu4.exe (function-name not available) (+ 0)
4 eu4.exe (function-name not available) (+ 0)
5 eu4.exe (function-name not available) (+ 0)
6 eu4.exe (function-name not available) (+ 0)
7 eu4.exe (function-name not available) (+ 0)
8 eu4.exe (function-name not available) (+ 0)
9 eu4.exe (function-name not available) (+ 0)
10 eu4.exe (function-name not available) (+ 0)
11 eu4.exe (function-name not available) (+ 0)
12 eu4.exe (function-name not available) (+ 0)
13 eu4.exe (function-name not available) (+ 0)
14 eu4.exe (function-name not available) (+ 0)
15 eu4.exe (function-name not available) (+ 0)
16 eu4.exe (function-name not available) (+ 0)

(I have abbreviated the code here but it's the same line repeating up sequentially to the numbers below)

20994 eu4.exe (function-name not available) (+ 0)
20995 eu4.exe (function-name not available) (+ 0)
20996 eu4.exe (function-name not available) (+ 0)
20997 eu4.exe (function-name not available) (+ 0)
20998 eu4.exe (function-name not available) (+ 0)
20999 eu4.exe (function-name not available) (+ 0)
21000 eu4.exe (function-name not available) (+ 0)
21001 eu4.exe (function-name not available) (+ 0)
21002 eu4.exe (function-name not available) (+ 0)
21003 eu4.exe (function-name not available) (+ 0)
21004 eu4.exe (function-name not available) (+ 0)
21005 eu4.exe (function-name not available) (+ 0)
21006 eu4.exe PHYSFS_writeSLE32 (+ 547058)
21007 eu4.exe PHYSFS_writeSLE32 (+ 143031)
21008 KERNEL32.DLL BaseThreadInitThunk (+ 20)
21009 ntdll.dll RtlUserThreadStart (+ 33)
21010 ntdll.dll RtlUserThreadStart (+ 33)

Now, the bugbear in the room is that I am using a mod, MEIOU and Taxes specifically. While I know modded games aren't supported here, I have reason to believe it's something to do with my computer and EU4 at a base level - specifically, when playing a save on multiplayer, I find if I transfer the save that crashes to a friend and they host the game, it does not crash for them. Additionally, this same problem has been happening to me in Crusader Kings 2, it's the exact same type of crash (that too is modded, HIP, for the sake of clarity). Perhaps it's notable that the uncompressed size of the save files when these games crashed was between 90-100 mb, but I'm not certain it's a factor.

Lastly, I have recently done a factory reset on my computer. Probably the most notable change as a result of that is that Windows 10 has updated to the latest versions. Before, while on a Windows 10 version released years back, my game did not have these issues. Same computer, and nothing else has changed.

I've done all the default troubleshooting steps, verifying the integrity on steam, doing memory and hard drive checks, driver checks, clean installs. So if anyone has any insight into that specific crash, help would be much appreciated. I have a feeling it's to do with Windows 10, but it's hard to say. Thanks!


Edit:
Looking through the error log myself, a pretty consistent trend is:

[virtualfilesystem_physfs.cpp:1239]: Could not open file: common/000_table_of_contents.txt, error: not found
[version.cpp:322]: Invalid file when updating checksum: common/000_table_of_contents.txt

With variations existing for hundreds or thousands of different files I guess coming from the mod. It seems to me like there's something maybe wrong with how my system is processing the virtual file system (which I do not have the tech knowledge to exactly understand), maybe after a certain degree of load is put onto it, it just stops recognizing the mod files. Not sure, but I thought it was noteworthy to point out.

 

[Cryoshakespeare]

Well, I tried something pretty unorthodox, which was to create a backup of my root EU4 directory and do a raw merge of MEIOU and Taxes into it. Some applications of WinMerge and figuring out which exact files would be replaced, the game loads fine as MEIOU and Taxes without any mods enabled, and yet I still get that crash.

However, the log changed in an interesting way, double the file size and the nature of the errors mentioned above changed, the trend now being:

[subunit.cpp:171]: unknown unit type 'turkishtech' in file common/units/ottoman_akinci_light_cavalry.txt

And its iterations for again, thousands of files. What's interesting is that, looking through the modded EU4 game directory, that file "ottoman_akinci_light_cavalry.txt" does indeed exist, and it most certainly does possess "unit_type = turkishtech". So I'm at a bit of a loss as to why the game won't recognize it.

The exception changed too, interestingly -

Spoiler: Exception

Application: EUIV
Version: EU4 v1.29.2.0 Manchu.206991c240
Date/Time: 2019-10-17 14:19:33

Unhandled exception C0000005 (EXCEPTION_ACCESS_VIOLATION) at address 0x00007FF6A273F44A

Stack Trace:
1 eu4.exe (function-name not available) (+ 0)
2 eu4.exe (function-name not available) (+ 0)
3 eu4.exe (function-name not available) (+ 0)
4 eu4.exe (function-name not available) (+ 0)
5 eu4.exe (function-name not available) (+ 0)
6 eu4.exe (function-name not available) (+ 0)
7 eu4.exe (function-name not available) (+ 0)
8 eu4.exe (function-name not available) (+ 0)
9 eu4.exe (function-name not available) (+ 0)
10 eu4.exe (function-name not available) (+ 0)
11 eu4.exe (function-name not available) (+ 0)
12 eu4.exe (function-name not available) (+ 0)
13 eu4.exe (function-name not available) (+ 0)
14 eu4.exe (function-name not available) (+ 0)
15 eu4.exe PHYSFS_writeSLE32 (+ 547058)
16 eu4.exe PHYSFS_writeSLE32 (+ 143031)
17 KERNEL32.DLL BaseThreadInitThunk (+ 20)
18 ntdll.dll RtlUserThreadStart (+ 33)
19 ntdll.dll RtlUserThreadStart (+ 33)

I know I'm delving into wacky territory really not suited for vanilla tech support, but I figured I might as well post this here in case anyone does notice a pattern.