"Hard" maps are sometimes prone to invisible walls or texture gaps due to their complex, non-standard terrain.
The "R25" likely signifies a specific version or update of the region, which includes expansive reaches of the Siberian wilderness , far removed from the more polished roads found in official DLCs like Heart of Russia .
Expect deep mud, narrow dirt paths, and flooded sections that require precise throttle control and often specialized "off-road" truck mods to navigate.
Version 1.45 is now an older version of ETS2. To play this specific map, you may need to "downgrade" your game version on Steam or find an updated version of the map compatible with the current game build.
If you are bored with the standard European delivery routes and want to test your driving skills against the harshest conditions imaginable, Mapa Tvrdého Ruska Sibiř is one of the most rewarding challenges available in the modding community. youtube.com/watch?v=0sNV2lYV8rw">SibirMap or RusMap?
Because these maps often use custom assets and dense foliage to create the Siberian look, they can be more taxing on your system than the base game.