Right-click your desktop AutoCAD shortcut and choose .
The most common cause of a crash in the Shape Manager during drawing regeneration is a video driver conflict. When AutoCAD attempts to render 3D solids, the ASM module interacts with the GPU via the installed driver. If the driver returns an unexpected value or cannot handle the specific geometry instruction set, an access violation is triggered within the ARX module.
The involving acismobj20.dbx is a common crash in AutoCAD (specifically 2015/2016 versions) that typically occurs when the software tries to process 3D ACIS objects (like regions or solids) in a drawing. It usually stems from a corrupted file, incompatible Windows updates, or a broken installation. 🛠️ Quick Fixes for File-Specific Crashes autocad fatal error acismobj20dbx best
The in AutoCAD typically indicates a corruption in program files, an incompatible operating system, or restricted file permissions. This specific .dbx file is an ObjectDBX module responsible for handling certain object data, and when it fails to load or is inaccessible, the application crashes immediately. Primary Causes
Running an older version of AutoCAD on a newer, updated system like Windows 11 . Recent Windows updates often alter underlying .NET Framework or .NET Core dependencies. Right-click your desktop AutoCAD shortcut and choose
Autodesk frequently releases hotfixes specifically targeting fatal crashes in memory modules like ObjectDBX. Open the desktop application and install all pending updates, security fixes, and object enabler updates for your version. To help narrow down the exact cause, let me know: What AutoCAD version year are you running? Does this crash happen on one specific file or every file ?
: Right-click your AutoCAD desktop icon > Properties. In the Target field, add /NOHARDWARE at the end of the string. If it launches, update your graphics drivers from the manufacturer's site (NVIDIA/AMD). If the driver returns an unexpected value or
Do not waste time on generic fixes like resetting the profile or reinstalling fonts. Focus on these proven remedies:
Issues with required support frameworks like Microsoft .NET Framework or Visual C++ Redistributables. Best Solutions to Resolve the Error
