BeamNG.drive Deploys Hotfixes for v0.39, Addressing Critical Rendering and Mod Issues

BeamNG.drive developers have deployed several hotfixes for version 0.39, targeting critical issues reported by users since the major update launched. The patches, encompassing versions 0.39.2, 0.39.3, and 0.39.4, address a range of problems from rendering crashes and mod compatibility failures to specific vehicle physics errors. For simulation users, these updates primarily restore stability on affected hardware configurations and correct the behavior of the game’s automatic mod management system.

The most significant technical intervention in the recent patches concerns rendering performance on certain systems. The developers identified that some D3D12 Intel drivers were causing excessive VRAM usage, leading to out-of-memory (OOM) errors and unsatisfactory performance. As a temporary workaround for users experiencing these issues, the team advises switching to Vulkan or D3D11 APIs. Additionally, fixes have been applied to resolve crashes in texture streaming, trailing shadows behind moving vehicles at long distances, and multi-monitor rendering glitches.

A separate but critical issue involved the Mod Manager’s update process. Version 0.39 introduced a system designed to automatically disable mods upon major updates to minimize backward compatibility issues as the codebase evolves. However, a bug prevented this automatic disabling from triggering for some users. The developers described this as an elusive issue that was difficult to replicate internally. The fix ensures that the system now correctly disables mods during the transition, allowing mod authors time to address potential conflicts while letting regular users gradually re-enable their content with fewer immediate errors.

Vehicle-specific corrections form a large portion of the v0.39.3 and v0.39.4 changelogs. The Cherrier Ardente received fixes for rear fog lights that failed to break, tailgates that did not close depending on fitted sub-parts, and missing meshes for RWD transfer cases. The Hirochi SBR4 saw improved stability for its hillclimb front splitter and fixed missing meshes on the eSBR front bumper. For the Gavril D-Series, developers corrected dual-filament headlights where low-beam brightness matched high-beam intensity, and resolved an issue preventing the Diesel Drag config from restarting after being turned off.

Physics and aerodynamics systems also received attention. All three new aerodynamics systems introduced in v0.39 were improved, and engine damage deformGroups for the Cherrier FCV platform were adjusted for better behavior. Final drive ratios on multiple configurations were tweaked, and wobbling issues on some vehicle tow hitches were resolved. In terms of camera functionality, the hotfixes cleaned up freecam rings and settings. The drone camera is now classified as a vehicle camera, supporting tilt and move controls, while the steadycam now offers options for shake strength, height, and default field of view.

User interface and gameplay stability were also addressed. The welcome screens have been moved to CEF, freeing up the glowmap for dimming effects on vehicles with LED screens and gauges. In the Early Preview Career Mode, a memory corruption crash when saving vehicle thumbnails was fixed, and the refueling UI now properly supports vehicles with multiple tanks. Achievement triggers for several milestones, including “Performance Review” and “Six-Figure Club,” were corrected to ensure they trigger in all intended cases.

Level-specific fixes include missing building collision and sidewalk holes in West Coast, USA, misplaced buildings in East Coast, USA, and map boundary corrections on the broken bridge in Utah. For Linux users, a fix was applied to ensure the “Constellation Line Labels” option displays correctly. The developers also resolved a startup crash affecting some laptops running Windows on Arm.

These hotfixes represent a rapid response to community feedback following the v0.39 release. By addressing both high-severity rendering crashes and granular vehicle physics errors, BeamNG aims to stabilize the simulation environment while maintaining the integrity of its evolving codebase. Users are encouraged to review the full changelogs for detailed information on specific vehicle configurations and UI adjustments.