Fixed Issues in Autodesk Civil 3D 2027
This document lists product fixes included in all releases of Autodesk Civil 3D 2027. The most recent releases are at the top.
| Assembly/Subassembly |
| Fixed the performance issue and errors when importing Subassembly PKT with variable value that contains ‘&’ |
| Fix the assembly gap in model viewer. |
| Fix the problem of being unable to show subassembly help when a subassembly is created by Subassembly Composer and pointing to a help file with special characters in its name. |
| Catchments |
| Fixed an issue when creating a new flow path for a Catchment displayed new flow segments along the previous flow path. |
| Fixed an issue that prevented the style selection being shown on the Catchment Properties. |
| Corridors |
Fixed an issue in which an incorrect value returned for QTOVolumeResult::CumulativeUsableVolume. |
| Fixed an issue in which incorrect values displayed in the corridor volume report in the toolbox. |
| Fixed an exception in API of Baseline AddRegion to add a corridor region before another. |
| Fixed a crash when deleting corridor solids or rebuilding corridor in some situations. |
| Fixed the issue that it will not do the the automatic corner cleanup when the target (Offset and Elevation/ Surface) is 'None' but the initial value is not 'None'. |
| Fix the issue that corridor is not rendering correctly for the large geometry corridor surface in canvas and object viewer when the visual style is Realistic. |
| Fixed the issue that grading feature line could be used for corridor baseline. |
| Drainage Analysis |
| Fixed an issue causing the drainage system analysis Export Settings to be hidden without scrollbars when the palette was too small. |
| Fixed an issue causing the input data for null structures set as outfalls to not to export after a drainage system analysis. |
| Fixed an issue where the status of a cancelled analysis was shown when re-running a drainage system analysis. |
| Fixed an issue causing the Server Region dialog box for the Analyze Drainage System command to Save changes when selecting Cancel, or when selecting anywhere outside the dialog box. |
| Fixed an issue causing a drainage system analysis to continue in a loop with a message "This may take some time" when in fact there is no valid rainfall available for the analysis to continue. |
| Fixed an issue causing Civil 3D to crash when running a drainage system analysis with a user account that does not have access. |
| Dynamo |
| Fixed an issue in which content in the Documentation Browser would not display correctly for certain languages. |
| Fixed an issue in which the Label.SetReferencedObject and Label.ReferencedObjectByComponent nodes did not work with COGO points. |
| Fixed a stability issue when editing the properties of a Python node port. |
| Fixed an issue in which the Choose Object Type dropdown selection could change when a graph was opened in a different locale. |
| Fixed an issue in which node port tooltips were not translated for certain languages. |
| Feature Line |
| Fixed an issue that endpoint is missing after break smoothed feature line. |
| Fixed an issue that featureline contextual menus are listed in general right click menu. |
| Fixed an issue that the point count is incorrect when import a closed feature line from LandXML. |
| Fixed an issue that civil will crash when run reverse and join commands for the smoothed feature lines. |
| Fixed an issue that move isn't disallowed when move elevation point to PI from elevation editor. |
| Fixed an issue that undo doesn't work for moving elevation point. |
| Fixed an issue that UNDO GRIP_STRETCH on a duplicated feature line segment leads to wrong geometry. |
| Fixed an issue that command line message shows wrong when extend feature line to a PI/Elevation point in the feature line. |
| Fix an issue that split point exists after move feature line elevation point |
| Fixed an issue that Civil crashed when stretch to a split point if a mid point is between an elevation point and PI point in a feature line. |
| Fixed a legacy issue that Arc radius will change when Insert PI point into Arc and remove PI point. |
| Fixed an issue that weed the feature line created from alignment does not remove the points. |
| Fixed an issue that element orders are inconsistent when export feature lines to Landxml multiple times. |
| Fixed an issue that user cannot insert a PI point that is perpendicular to the segment. |
| Fixed an issue where there are 2 select options for feature line context menu. |
| Fixed an issue that cannot extend feature line created from alignment without select first. |
| Fixed an issue that Civil crashes when move elevation point toward split point and move back in fit curved or smoothed feature line. |
| Fixed an issue that Civil crash after trim and undo for several times. |
| Fixed an issue that gizmo disappear after delete elevation point from feature line contextual menu. |
| Grading |
| Fix an issue that graded surface extend over target surface |
| Fixed an issue that Civil 3D freezes when user create grading area using “Grade to elevation” criteria from outer boundary of grading area and three PG topology issues. |
| Fixed an issue that feature line not grading to surface correctly in Civil 3D. |
| Fixed an issue that UNDO and REDO Insert PI at grading attach point makes the grading disappear. |
| Fixed an issue that Civil3D freezes when a Grading is built based on dynamically linked corridor Feature Lines. |
| Fixed an issue that grading and surface are modelling wrong when moving grips. |
| Gravity Pipes |
| Fixed an issue where the pipe network parts list was not displayed in the Import Style dialog. |
| Fixed an issue where pipes were not displaying correctly in Forma. |
| Horizontal Regression |
| Fixed an issue where some warning messages were not translated in specific localized versions. |
| Fixed an issue where, in certain situations, the Horizontal Regression Analysis UI window and the final alignment displayed inconsistent segment information. |
| Hydrology (H&H) |
| Fixed an issue in Hydraflow Express that caused culverts expected to be in outlet control to show results that the culvert is in "Inlet Control" |
| LMV |
| fixed issue where alignemnts were segmented into straight lines very coarsely |
| Model Viewer |
| Fixed the issue a sphere will disappear from the viewport when editing it in non-GSF and then display in GSF mode |
| Fixed the issue that a sphere will disappear from the viewport when editing it |
| Fix the bug about rail alignment corridor rebuild with pkt file, station tracker works wrong in model viewer |
| Fixed the issue that Station tracker will not display when profile sation isn't in the alignment station scope |
| Other |
| Fixed a crash caused by swapping a pipe to an Elliptical shaped pipe after starting to run Analyze Drainage System. |
| Fixed an issue that Qselect command doesn't work for style property of alignment |
| Fix an issue that Civil 3D command(-purge regapps) disables QTO Manager functionality. |
| Parcels |
| Fixed a stability issue that occured when creating a parcel segment from a line after several grip edits. |
| Performance |
| Fixed OSNAP-intersection with corridor performance lag issue in Civil 3D |
| Pond(SWC) |
| Fixed an issue where the precision in the pond properties did not match the pond feature settings |
| Fixed an issue where a pond from surface was not displaying correctly in a 3D view |
| Fixed an issue where the properties palette was empty when a pond was selected. |
| Fixed an issue where the Contour keyword in the Create Pond from Surface command would not work for certain languages |
| Fixed an issue where the Xref keyword in the Create Pond from Object command would not work for certain languages |
| Pressure Pipes |
| Fixed an issue in which alignment station equation was not support in pressure parts plan labels. |
| Profile View |
| Fixed an issue that Profile View Band Labels are missing after Xref then Bind. |
| Fixed an issue in which the horizontal grid lines in a profile view did not display correctly. |
| Rainfall Methods |
| Fixed an issue in the Rainfall Manager that allowed a user to browse to a preselected rainfall distribution and then navigate to the Library to create a new rainfall type without clearing the previous view. |
| Fixed an issue where Learn More links in the Rainfall Manager could not be accessed because they were going to a staging path. |
| Fixed an issue in the Rainfall Manager tables causing row focus to jump to an unexpected row. |
| Reference Templates |
| Fixed an issue in which the scale of a locked viewport changed after attaching a reference template. |
| Subassembly Composer |
| Fixed an issue that Pkt Subassembly's behavior changed due to Enum items{}{} |
| Surfaces |
| Fixed an issue that LandXML Export multiple alignments when corridor is in folder. |
| Fixed an issue that TIN Volume calculation differ between the 2025 and 2026 versions when surface is a Data Shortcut in Civil 3D |
| Fixed an issue that Civil 3D crash when run NWCOUT. |
| Fixed an issue that fail to crop surface in some cases. |
| Validation |
| Fixed an issue that caused the selected sort order to resort in the Runoff Method Validation list after editing the Runoff method for a Catchment and selecting OK. |
