If you want, tell me your AutoCAD version and whether this happens with all drawings or only some, and I’ll give the most targeted next step.
Corrupted runtime binaries drop entry points or leak memory allocation pools when evaluating engine expressions. i autocad debug error acngenexe full
Follow these troubleshooting steps in sequence to isolate and eliminate the error. 1. Terminate Hanging Autodesk Background Tasks If you want, tell me your AutoCAD version