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DxfWriter.Dispose() throws a second, unrelated NullReferenceException after Write() fails at UpdateImageReactors(), silently replacing the original exception under a standard using-block

Status: Open.

#1178 In DomCR/ACadSharp;

· dwscat20 opened on Aug 9, 2026

CadDocument.UpdateImageReactors() throws NullReferenceException on a RasterImage/Wipeout-derived entity whose Definition is null — a state DwgReader itself can produce from malformed input

Status: Open.

#1177 In DomCR/ACadSharp;

· dwscat20 opened on Aug 9, 2026

DxfWriter silently omits DXF group code 2 (block name) for an INSERT entity whose Block reference is null — emits a spec-invalid DXF with no warning or exception

Status: Open.

#1176 In DomCR/ACadSharp;

· dwscat20 opened on Aug 9, 2026

Autocad Electrical Schematics CAD drawings read/write.

Status: Open.

#1175 In DomCR/ACadSharp;

· SRajapandi7 opened on Aug 4, 2026

PERFORMANCE_OPTIMIZATION

code refactoringImprovements in the existing codeImprovements in the existing code

enhancementNew feature or requestNew feature or request

Status: Open.

#1173 In DomCR/ACadSharp;

· DomCR opened on Aug 1, 2026

Insert entities silently dropped when reading AC1032 (R2018) DWG files

bugSomething isn't workingSomething isn't working

Status: Open.

#1172 In DomCR/ACadSharp;

· rafaelfrancisco-contato opened on Jul 31, 2026

System.NotImplementedException: 'The method or operation is not implemented.'

bugSomething isn't workingSomething isn't working

Status: Open.

#1170 In DomCR/ACadSharp;

· arshadrasheed opened on Jul 31, 2026

User has reported an exported DWG is saved with 'Student Version of AutoDesk'

duplicateThis issue or pull request already existsThis issue or pull request already exists

Status: Open.

#1169 In DomCR/ACadSharp;

· IainS1986 opened on Jul 31, 2026

DwgWriter is O(blocks × entities): writeBlockHeader rescans every model-space entity twice per BlockRecord

bugSomething isn't workingSomething isn't working

Status: Open.

#1167 In DomCR/ACadSharp;

· phamhongphuc1403 opened on Jul 31, 2026

Feature request: DWG file support

Status: Open.

#1166 In DomCR/ACadSharp;

· massoudmaboudi opened on Jul 31, 2026

DWG writer: inverted LTYPE handle condition corrupts AC1014 (R14) files

Status: Open.

#1161 In DomCR/ACadSharp;

· mcyike5 opened on Jul 25, 2026

DWG read fails on duplicate/missing reserved block records (*Model_Space / *Paper_Space)

Status: Open.

#1157 In DomCR/ACadSharp;

· flat-eric147 opened on Jul 20, 2026