Altair HWDesktop 2021.2.1

The software developer Altair HyperWorks is pleased to announce the availability of HyperWorks Desktop 2021.2.1. As with all hot fixes, this release includes resolved issue to various user-reported issues from the previous release, providing an overall more stable experience.


Log4j Update (for Windows only)
The HWDesktop 2021.2.1 hotfix contains the upgraded log4j file from 2.0 to 2.17.1 in which the CVE-2021-44228 exploit is resolved.
Altair recommends that you remove the two files: log4j-core-2.0.jar and log4j-api-2.0.jar from the following two locations in your Windows installation:
- C:Program FilesAltair2021.2hwdesktoppadexecthirdpartylib
- C:Program FilesAltair2021.2hwdesktoppadexecappsDesktopHelperbinariesDesktopHelperWEB-INFlib
Resolved Issue
For HyperWorks products except for HyperMold and HyperWeld, Open/Import/Drag & Drop of solver files will no longer automatically switch the reader based on the file type or filter chosen when selecting the file. The reader default will always be based on your current solver profile.
Altair HyperMesh 2021.2.1 Release Notes
Connectors
Resolved Issues
- Connector seam realization crash observed with end offset.
- Attachments losing links when the component numbering changed. The part reference is now retained.
- Attachment REM not resolving when referenced by existing connectors.
General
Enhancements
A new export option is added for HyperMesh component comments that will preserve the integrity of solver deck with our previous releases. This option is added for Nastran and OptiStruct solver profiles.

Resolved Issues
- Application crashes when using the scrollbar in a browser while running remotely on Linux
- An occasional crash seen when switching between contexts in a Sketcher workflow.
- A crash seen on shutdown when entity view browser is open.
- Authentication issue when using Hosted Altair Units (HAU).
Geometry
Resolved Issue
Fixed segmentation error from usage of API *multi_surfs_lines_merge.
CAD and Solver Interfaces
Abaqus Interface
Resolved Issues
- An issue with export displayed would not export element/node sets has been fixed.
- Gasket element contact surfaces that were not writing out appropriate face information upon export has been fixed.
CAD Interface
Resolved Issue
Fixed CAD import crash for IGES files exported from CADMATIC containing plane entities.
Known Issue
STL file import fails via geometry import method. Import the STL file via import solver deck by setting the Reader option to STL.
Altair HyperView 2021.2.1 Release Notes
General
Resolved Issues
- A misleading error "request file is missing or invalid" appears while loading the Adams XML RES file. This error is reported from the Standard Math template (not applicable for Adams results). The math template is set to "None" for Adams result files.
- Authentication issue when using Hosted Altair Units (HAU).
Solver Interfaces
PAM-CRASH 2G Interface
Resolved Issue
Fixed HyperView crash issue while reading input model with missing elements in the element range set that are referred in the transformations.
Altair MotionView 2021.2.1 Release Notes
Resolved Issues
- Control State Equation entity for ADAMS solver mode (GSE) is missing INTERFACE option in 2021. This issue has been fixed.
- Authentication issue when using Hosted Altair Units (HAU).
NVH Director 2021.2.1 Release Notes
Enhancements
Loads MSA
- Support external randomized imbalance force matrix in CSV file format.
- Calculate overall response using magnitude summation approach.
NVH Preferences
- Specify preferences for post-processing utilities.
- Standard Loadcase preferences have an additional application type for Wheel Imbalance to specify the unit type for tire uniformity imbalance forces.
- Standard Loadcases preferences, application type Road Loads, phasing in x direction for enforced displacements.
Analysis Manager
- Visualize connections with multiple states.
User Action Required
Important:To avoid a potential application error while invoking NVH Director, delete the
hwnvhpreferences.xml file from the Documents folder.
The location of this file was changed from the Documents folder to the user Home directory, but the file needs to be removed from the Documents folder to avoid a potential error.
HyperWorks CFD 2021.2.1 Release Notes
Resolved Issues
- Volume mesher creates negative jacobian elements.
- Remeshing after wrapping was creating skewed elements.