Internal Error 2602 Autocad High Quality May 2026

Fixing AutoCAD "Internal Error 2602": A Guide to High-Quality Plotting

You’ve spent hours perfecting your design. The lineweights are immaculate, the layers are organized, and you are ready to produce that high-quality plot for your client or construction team. You hit Plot, and then it happens:

Report: Addressing "Internal Error 2602" in AutoCAD

Date: October 26, 2023 Subject: Troubleshooting Guide for AutoCAD Internal Error 2602 Status: High Priority / Workflow Interruption internal error 2602 autocad high quality

  • RealDWG 2025+ (authentication-free read/write for tools)
  • SQLite-based recovery journal (rollback support)
  • Parallel validation (multi-core checksum verification)
  1. Corrupted MPolygon Data: The mathematical closure of a loop is broken.
  2. Visual Fidelity Corruption: The display graphics for a hatch or gradient fill cannot be calculated.
  3. Version Mismatch: A drawing created or saved by a newer version of AutoCAD is being opened in an older version that cannot parse the MPolygon logic.
  1. Type PURGE and run it on the drawing (select All and purge nested items).
  2. Type AUDIT and answer Yes to fix errors.
  3. If the file still crashes, try the WBLOCK (Write Block) method:
    1. Open AutoCAD.
    2. Type OPTIONS and press Enter.
    3. Go to the System tab.
    4. Under "Graphics Performance," click Graphics Performance.
    5. Turn OFF "Hardware Acceleration."

      Step 2.2: The "ActiveX" & "ARX" Check Expand your current profile. Look for two keys: Dialogs and LoadAcadLspIn. Fixing AutoCAD "Internal Error 2602": A Guide to

      • Command: -PURGE → Type R (Regapps) → * → N (No to each)
      • Repeat with A (All) → * → N