Error 602 in PLAXIS 3D 2025.1.0 for Safety calculations with beams


Application PLAXIS 3D
Issue status Solved
First Affected Version PLAXIS 3D 2025.1.0
Found in Version PLAXIS 3D 2025.1.0.1991
Fixed and Released in Version PLAXIS 3D 2025.1.1.9
Issue # 1927499
Date created 3 November 2025
Date modified 14 November 2025

Problem description

An issue has been identified when running a PLAXIS 3D Safety calculation that includes beam structural elements. This problem occurs in this specific release version: PLAXIS 3D 2025.1.0.1991  

During the calculation, the red cross icon appears, and when viewing the Log info, it displays: 
Unknown error. [Error code: 602] 

log_info_error.png

The Log info can be found when you double-click on a phase or by clicking on the View Phases icon in the Phases explorer, as shown below: 

phases_explorer.png

To verify your current PLAXIS version and build, go to Help > About in the application menu. 

 

Workaround

This issue is now resolved with the release of PLAXIS 3D 2025.1.1. Download the latest PLAXIS version here.

If the project has been converted and opened in PLAXIS 3D 2025.1.0 from an older version, you can still open the original project (pre-conversion) using PLAXIS 3D 2024.3 or the relevant previous version. 
Side-by-side installation of the previous and latest PLAXIS 2025.1 versions is supported. 

This issue is now resolved with the release of PLAXIS 3D 2025.1.1. Download the latest PLAXIS version here.

If you experience any issues with the new version released, please open a Support Case via: https://bentleysystems.service-now.com/csp