In certain conditions, if you interrupt the solution process of a SMART Crack Growth analysis, the Load Step and Substep properties of the Restart Analysis category of the Analysis Settings, incorrectly display the last available restart point. This issue affects SMART Crack Growth analyses that:

If you solve an acoustic-based analysis, that includes a Velocity or Mass Source excitation, at a frequency that requires interpolation of the phase angle, the interpolated phase angle and results may be inaccurate. (1123388)

The Ansys Mechanical application may display script errors if run on the unsupported 24H2 build of Windows 11. Ansys recommends that you do not install this Windows build if you are using Ansys Mechanical. The service pack for the current release will include corrections for this issue. (1177731)

When specifying the Solution Process properties for a Structural Optimization analysis, if you set the Update Option property to Remote Solver Manager and the HPC Type property to Windows HPC, the Update Project option will fail if selected. (1145309)

If you are solving a Structural Optimization analysis using the Remote Solve Manager (RSM) on a Windows HPC cluster, the application requires the use of an additional, and available, license, in order to complete the solution. (270515)

When you have the Accelerated Graphics feature turned on, you may see incorrect values in the graphics display (legend display in the Geometry window) for imported temperature loads that are using the Kelvin unit system.

You can address this issue by setting the Accelerated Graphics for Body Load Display (Options > Graphics > Performance) preference to No. However, this setting could result in degraded processing performance.

If you want to keep Accelerated Graphics active, you can change the unit system for the temperature display to Celsius prior to importing the temperature load or prior to selecting the Imported Temperature Load object, if you are resuming a project that includes an imported temperature load. (1164682)

If the Restart Analysis Add-on is loaded, some invalid Mechanical systems may be validated. To reduce the risk of inaccuracies, ensure that your setup configuration is indeed valid. (1034070)

When beam or spring connections are created using the 1D Connection Group (Connections Manager Extension) and there are associated remote point objects, these remote points must be suppressed or deleted separately when the associated connection objects are suppressed or deleted. (1048375)

The Modal Assurance Criterion (MAC) calculation in the NVH Toolkit Add-on can give incorrect values in cases where a material is non-isotropic or when a CMS is part of the model. The mass scaling is not performed for such cases. Check your results carefully. (1116783)

If you are using a table to specify the magnitude of a temperature-dependent film coefficient, you cannot add or modify values for the independent variable Difference Between Surface and Bulk Temperature. This applies if you are manually creating, importing, and editing the table within the Mechanical application's user interface. It does not apply if you are using the Mechanical API to perform these operations.

The work-around in the Mechanical application is as follows:

Importing a STEP file (*.stp or *.step) into Mechanical 2025 R1 requires the rdpara licensing increment. Workaround: Use Mechanical 2024 R2 to import the STEP file or use a Mechanical 2025 R1 license that includes the rdpara license feature. (1207849)