---
title: "6.4.0"
canonical: "https://documentation.chaos.com/space/ANIMA/797278211/6.4.0"
format: markdown
---
*Release Date: May 04 2026*

 

> Macro (ui-button)

  


## **New Features & Improvements**

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### **Core & Engine**

- Automatic Hardware Failover: Implemented a system that automatically switches to CPU processing when CUDA issues are detected, preventing application crashes.
- Resource Management: Optimized Anipack creation to strictly exclude resources when the option is selected, resulting in smaller, cleaner project files.
- Stability for Large-Scale Projects: Fixed critical crashes when generating extremely long roads or simulating oversized vehicles.
- Height Parameter: Fixed application crashes when modifying the height parameter of an ambient model.
- Asset Downloading: Resolved an issue where vehicles and passengers were downloaded even when the "Not Download" flag was set in Settings.
- Road Generation: Added support for creating roads with dimensions below the standard minimum limits.


### **Plugins**

- Improved Anima Drop: Fixed a bug where assets imported via Anima Drop would appear as triangles on the first import attempt.
- Material Persistence: Variation previews are now correctly respected and preserved once the drop process is completed.
- Render Node Stability: Enhanced reliability for 3ds Max and Cinema 4D when running in Headless mode / Render nodes.
- Drop Panel: Resolved an error in the Drop panel that occurred when trying to download a model already present in the library.


### **Unreal Engine**

- High-End Rendering Fixes: Corrected 4D model visibility and reflections when using Path Tracing and Ray Tracing.
- Sequencer Improvements: Fixed shadow casting issues for vehicles within the Unreal Sequencer.
- Large World Stability: Resolved vehicle animation instability occurring when actors are positioned far from the world origin.
- Version 5.7 Specific Fixes: Passenger animations failing to follow vehicle movement and wheel animations not stopping properly on inclined surfaces.
- License Validation: Added safeguards to prevent unexpected results or crashes when running the plugin without a valid license.
- Model Handling: Fixed a crash occurring when dropping a Posed model into the scene.


### **3ds Max**

- V-Ray Integration: Fixed a crash occurring when using V-Ray IPR in scenes containing vehicles.
- Corona Renderer: Resolved 4D model distortion issues when using Interactive Rendering (IR) even without MB active.
- Shader Logic: Corrected missing VrayMtl shader nodes during material generation.


### **Cinema 4D**

- Scene Synchronization: Fixed the loss of transform offsets for re-parented scenes when using the "reload scene" function.
- Material Refresh: Resolved an issue where car materials were not regenerated when using "reload scene".


## **General Bug Fixes**

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- Escalator Simulations: Fixed animation glitches affecting rigged models when using the escalator tool.
- Camera Previews: Resolved an issue where preview videos from animated cameras appeared as static images.
- Scene Cleanup: Corrected a bug where deleted objects were not properly removed from the geometry background, optimizing memory usage.
- 4D Footprints: Fixed display issues where 4D actor footprints would interfere with the visibility of other models in the scene.