After several hours of repeated tests, I can now responsibly say that The Great Steppe 2.0 has a crash BUG in version 1.43. Nothing to do with various sorting methods and other MODs
In order to avoid MOD conflicts or sorting issues, other map MODs were deliberately excluded, only Russia 2.43.1 and The Great Steppe 2.0 were left, and the language patch was also excluded.
For details, please refer to the picture (Fix_RusMap_2.4.3-TGS). The location of the patch has also been tested repeatedly. Putting The Great Steppe 2.0 on top of Russia also resulted in a crash.
You can also test by yourself. By quickly transferring to Aktobe and driving in the direction I marked, the game will crash during the process.