Free Exclusive - Autocad Fatal Error Acismobj20dbx

Here are the steps to resolve this issue, ordered from the most likely to the least likely solution.

Fix 1: Reset AutoCAD to Defaults (The "Free Reset")

- "Fatal Error: Unhandled Access Violation Reading acismobj20.dbx at [memory address]"
- "AutoCAD Error: Aborting. FATAL ERROR: acismobj20dbx free"
- "Exception caught: acismobj20.dbx failed to initialize"
The file acismobj20dbx suggests a conflict with a third-party Object Enabler or a vertical application (like AutoCAD Architecture, Civil 3D, or Map 3D) trying to run inside standard AutoCAD. autocad fatal error acismobj20dbx free

Preventing the Error in the Future

Report: AutoCAD Fatal Error acismobj20dbx