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Fixed Issues in Autodesk Civil 3D 2025

This document lists product fixes included in Autodesk Civil 3D 2025.

Alignments
Fixed an API issue with Alignment.StationOffsetAcceptOutOfRange() which may have thrown a StackOverflowException in specific cases.
Fixed an issue in which the Alignment widening was always named left, regardless of the selected side.
Fixed an issue in which a warning displayed when saving alignment geometry using input values instead of calculated values from a spiral for curve groups.
Fixed an issue in which you could not specify Offset Alignments with a zero offset.
Assembly/Subassembly
Fixed an issue in which some PKT files from the Country Kits installer could not be used in Civil 3D.
Fixed an issue in which the Assembly name after copy-paste was not incremented properly.
Fixed an issue in which you could not specify a profile specific .codes file for Country and State Kits in Civil 3D.
Fixed an issue in which there was a display mismatch between a Code Set Style applied in the Properties Palette and Code Set Style applied in the Assembly Properties.
Autodesk Collaboration for Civil 3D
Improved the efficiency of Dref sync operations from Autodesk Docs. When working on a drawing from Docs in Civil 3D, Dref source files are now automatically cached to their latest version. This enables faster synchronization of Dref changes into drawings and eliminates potential blockages in Civil 3D.

Note: The efficiency of the sync operation depends on factors such as the response of Desktop Connector and the size of the source file. Consequently, background file caching may not complete immediately.
COGO Points
Fixed a stability issue that occurred when running a Station offset to Points.
Coordinate System
Fixed an issue in which Balkan Zone 7 in Slovenia was not correct in Civil 3D.
Fixed an issue in which an unknown error occurred when adding custom coordinate systems to categories in the Civil 3D 2024 Coordinate System Library.
Corridors
Fixed an issue in which a corridor section could be empty at one specific station in a drawing.
Fixed an issue in which a corridor surface disappeared after rebuilding the corridor if its code name was translated by the .codes file.
Fixed an issue in which a new drawing possessed incorrect drawing settings after exporting corridor solids.
Improved performance when rebuilding corridors with long offset targets.
Cross Sections
Fixed an issue in which 3D solid objects appeared reversed in the section view.
Fixed an issue in which turning off layer visibility in the section view style window would freeze Civil 3D.
Dynamo
Fixed an issue in which clicking the Select button for an input value displayed 'Make selection' instead of 'Select in Revit'.
Fixed an issue in which running a graph located in an untrusted location would throw an exception after switching the drawing.
ESRI GIS Data Integration
Fixed a stability issue that could occur when exporting empty geometry object to a file geodatabase.
Gravity Pipes
Fixed an issue in which the pipe label text in a profile view band could not be edited individually.
Fixed an issue in which the pipes rule check results would not update after the rule changed.
Fixed an issue in which Importing a pipe network with LandXML would only recognize the properties for structures and not for pipes.
Fixed an issue in which the correct user profile name displayed in the pipe network catalog path when using an imported user profile.
Miscellaneous
Improved Zoom/Pan performance for drawings containing a large number of polylines with lightweight turned on.
Fixed an issue in which the Adaptive Label Group and Label Toggle did not remain off when reopened in Civil 3D.
Parcels
Fixed an issue in which line segment labels could not be selected through a viewport.
Fixed an issue in which a new layer was not created with a site name for parcel area labeling when an object layer value contained an asterisk.
Performance
Improved performance of the JOIN command when used in a drawing with many lines.
Plotting/Publish
Fixed an issue in which surface detail was missing when plot with level of detail was on.
Improved stability when plotting a drawing to a PDF file.
Pressure Pipes
Fixed an issue in which an unexpected warning message would show after the command PUBLISHPARTCONTENT.
Fixed an issue in which the catalog editor failed to open some files.
Fixed an issue in which Civil 3D objects displayed broken with offset when hardware acceleration was enabled.
Fixed an issue in which the pressure parts linework display on profile view was not correct when using AutoCAD + OE.
Profiles
Fixed an issue in which the surface offset profile was broken in some cases.
Fixed an issue in which an error message incorrectly displayed by the Audit command when profiles were created with the API.
Fixed an issue in which the vertical line in the horizontal geometry data band was missing when the station range started in middle of a curve.
Improved stability when making the Line Extensions of some profiles visible in the profile style.
Project Explorer
Improved stability when displaying pressure networks with null values for the nominal diameter description property for pressure parts.
Improved stability when finding feature lines using the Open in Project Explorer from the contextual menu after editing the elevation of feature line points.
Quantity Takeoff
Fixed a stability issue that would occur when creating an earthwork construction plan with a closed polyline which has no area.
Fixed an issue in which the Quantity Takeoff incorrectly computed a value when regions have gaps.
Fixed an issue that was causing incorrect materials to be calculated when the offset value of vertices in sections of both below and above surfaces had a difference between 10e-5 and 10e-9.
Rail Design
Fixed an issue in which the Equilibrium Cant property used for custom Expression results in an undefined property message.
Subassembly Composer
Fixed an issue in which the Input/Output Parameter could be deleted after undoing and sorting the column by name.
Surfaces
Fixed an issue in which draped images appeared as mirrored and/or rotated when rendering with hardware acceleration on.
Fixed an issue in which the Data Clip boundary created additional phantom surface points.
Fixed an issue in which large point files failed to create a surface.
Fixed an issue in which breaklines were ignored when added to a surface.
Fixed an issue in which volume Surfaces values of surfaces exported by Create Cropped Surface were different.
Fixed an issue in which surface editing would fail in Level of detail view if the surface contained extremely long breaklines.
Fixed an issue in which you could not select Breaklines in Item View when the Breaklines category had been selected.
Fixed an issue in which you could not pick a surface edge with surface editing commands such as Swap Edge (EditSurfaceSwapEdge).
Vault with C3D
Fixed an issue in which the Vault tree would collapse while switching drawings when the path content of the Data Shortcut tree was the same.

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