Fixes that apply to AutoCAD P&ID Only:

SQL Server

• An AutoCAD P&ID 2012 project using an SQL Server database and SQL Server Authentication could not migrate to AutoCAD P&ID 2013. Windows Authentication is not affected by this issue.

Fixes that apply to AutoCAD P&ID and Plant 3D:

Off-Page Connectors

• If a P&ID drawing is removed from a project and then added again, you cannot reconnect the off-page connectors.

A360

• You could not log out of Autodesk 360 after signing in using the Options dialog box.

Fixes that apply to AutoCAD Plant 3D only:

Isometrics

• Wye and lateral tee fittings did not display correctly in isometric drawings. This fix requires an update to the Iso style. You can copy the updated Iso style files from ISOProjectTemplates in the program folder to the Isometric folder in your project. Doing this will overwrite changes made to your existing Iso style.
  
  Updating Individual Project Iso Style Files: To avoid losing all changes to your Iso style, you can copy files directly from the ISOProjectTemplates folder in the downloaded ZIP to your project. Copy from the ZIP and overwrite files of the same name in your project. In doing so, you avoid losing customizations in files that are not updated in the hotfix (for example: changes to Iso.dwt will not be lost).
• Weld annotations near other welds did not always indicate the correct weld.
• If an isometric drawing split into two sheets, weld numbers would always reset for each sheet.

  To set weld numbers to each sheet, you can now change the ContinuousIndexing value to "true" for the Index element in isoconfig.xml.

• Pipe supports (welded stanchions and dummy Legs) were disconnected in isometric drawings and the PCF file. Also, string dimensions for dummy legs used the attachment point instead of the elbow center.
• Some end types (for example: Lined Flange LFL, Triclover TC, and BPE from ASME catalogs) were not correct in isometric drawings and the PCF file.
• Welds connecting pipe supports to piping did not display in the isometric drawing. This fix requires that you change the port property of pipe supports to PL or BV (from Undefined_ET). Port properties for spec-based pipe supports can be modified using the catalog editor and added to pipesupports.pspx using the spec editor. The pipe supports catalog is CPak Common\SUPPORTS Catalog.acat in the content folder. You can use the properties palette to set the end type for non-spec pipe supports created using plantpipesupportadd.
• Some attributes did not display in the Insert Title Block Attributes dialog box. Also, duplicate attributes could be placed.
• Elevation annotations were added to the iso drawing at branch connections even if the elevation did not change.
• Olets added unnecessary coordinate information in the iso drawing. Also, plugs connecting to Olets displayed incorrectly.
• Valves would sometimes appear disconnected at flanged connections in the iso drawing.
• The dimension previews did not display clearly in Isometric DWG Settings.
• U elbows, Triclover elbows, pressure relief valves, and tapered crosses did not always display correctly in the iso drawing.
• The coordinates on connection annotations (cont'd on) were not always correct.
• Pipe supports that are combined (Supports on Supports) sometimes caused an additional iso sheet to be created.
• Elevation annotations unnecessarily displayed in spool drawings and with coordinate annotations.

Piping

• Insulation did not display on bent pipe.

Pipe Supports

• Dummy leg pipe supports did not position correctly (perpendicular to piping) when attached to pipe in the 3D Model.
• When attaching pipe supports to elbows, some supports did not snap to the bottom of pipe (BOP) as expected.
• Associative dimensions in paper space did not update correctly for plant objects.
• Performance was slow with a large number of line groups.

Structure

• Structural steel dimensions for some shapes were incorrect.

Orthographics

• Ortho annotations did not always display correct units and precision.
• Ortho drawings saved outside the project folder would not work.