Fixed Issues in Autodesk Civil 3D 2026.2
This document lists product fixes included in Autodesk Civil 3D 2026.2.
| Assemblies and Subassemblies |
| Fixed an issue in subassembly composer in which a LOOP object placed on LH side was not working correctly. |
| COGO Points |
| Fixed a stability issue that could occur when using the COGO Editor. |
| Drainage Tools: Analysis |
| Fixed an issue displaying export status messages for a drainage analysis after the Export panel was collapsed. |
| Drainage Tools: Catchments |
| Changed the confusing "Properties..." command to "Catchment Properties..." on the catchment right-click menu in Prospector. |
| Fixed the title of the Catchment Properties group on the Runoff tab in Catchment Properties dialog box. |
| Drainage Tools: Rainfall Manager |
| Fixed an issue where duplicate custom rainfall distributions could be created when importing a rainfall library. |
| Dynamo |
| Fixed an issue in which the PipeNetwork.ShortestPathBetweenParts node would return Part objects instead of Pipe and Structure objects. |
| Fixed a stability issue when using Node Autocomplete. |
| Fixed a stability issue that could occur with Python scripts with invalid API calls. |
| Fixed an issue in which nodes for retrieving the reference surface of an object would return the wrong surface type. |
| Feature Line |
| Fixed an issue in which moving a PI (Point of Intersection) to an elevation point on a feature line was not restricted, resulted in the unintended removal of the elevation point. This action is now prohibited to maintain elevation data integrity. |
| Fixed an issue in which the point count was incorrect when importing a closed feature line from LandXML. |
| Fixed an issue in which you could not snap a feature line elevation point to an intersection after editing. |
| Fixed an issue in which you could move an elevation point to a PI from the elevation editor. |
| Fixed an issue in which an arc radius would change when inserting a PI into an arc and removing the PI. |
| Fixed an issue in which you could not insert a PI that is perpendicular to the segment. |
| Fixed an issue in which an endpoint is missing after breaking a smoothed feature line. |
| Fixed a stability issue when running reverse and join commands for smoothed feature lines. |
| Grading |
| Fixed a stability issue when creating grading transitions. |
| Fixed a stability issue when editing grading feature lines. |
| Gravity Pipes |
| Fixed an issue in which a gravity pipe network could not be set as the data source for profile view bands. |
| Fixed an issue in which a gravity pipe network parts list did not display in the Import Style dialog box. |
| Fixed an issue in which a structure height was not immediately updated when a pipe changed. |
| Horizontal Regression |
| Fixed an issue in which the offset calculated in the Horizontal Regression Analysis UI would display different results than those in the output alignment for spirals. |
| Fixed an issue in which the localized versions of Horizontal Regression Analysis where the Segments Table could only be edited in English. |
| Miscellaneous |
| Fixed a stability issue that could occur when the Adjust Mapcheck command did not generate the adjustment data files in Notepad successfully when using Windows 11. |
| Fixed a stability issue that could occur when attempting to export a drawing. |
| Model Viewer |
| Fixed an issue in which a Dynamo-owned object was not updated correctly in Model Viewer. |
| Ponds |
| Fixed an issue in which UNDO did not work properly for ponds shown in Model Viewer. |
| To alleviate confusion, connectivity info is no longer shown in the pond properties for data referenced ponds. |
| Fixed an issue in which preview graphics did not display during mirror, rotate, or scale operations. |
| Fixed an issue in which the bottom contour for a surface-based pond could show in the wrong location after an UNDO. |
| Pressure Pipes |
| Fixed an issue in which the pressure tee unexpectedly rotated when connected to a lateral pipe. |
| Fixed an issue in which the pressure pipe network name did not display correctly in the table title. |
| Fixed an issue in which certain pressure parts were added to the wrong pipe run after swapping a Tee/Cross. |
| Profiles |
| Fixed an issue in which projected solids could be displayed in a profile view. |
| Fixed an issue in which the horizontal grid lines in a profile view did not display correctly. |
| Project Explorer |
| Fixed an issue in which alignments in the "Set Reference Alignment" and "Set Reference Surface" dialogs did not display by name in alphanumeric order. |
| Rail Design |
| Fixed an issue in which selecting a specific profile from the drop-down list in Create Diverted Profile was ignored, and Civil 3D always used the first profile of the related alignment instead. |
| Reference Templates |
| Fixed an issue in which changes to Property Data format in a Property Set within the reference template file were not being synchronized with the host drawing. |
| Subassembly Composer |
| Fixed a stability issue that could occur when opening Subassembly pkt files in Subassembly Composer 2026. |
| Fixed a stability issue that could occur the Loop Repetition was set as empty. |
| Fixed an issue in which Subassembly Composer loop geometry was not working as expected. |
| Surfaces |
| Fixed a stability issue when creating a wall breakline from a polyline with a short segment. |
