I am using Wolfram Mathematica 12.1 and the Wolfram System Modeler 12.1 on a Windows 10 (64 Bit) notebook. Pretty much exactly since yesterday (2020-04-10), I am experiencing severe and previously unknown issues with running models in System Modeler and Mathematica.
$Version (* "12.1.0 for Microsoft Windows (64-bit) (March 14, 2020)" *) SystemModelSimulate[ SystemModel["DocumentationExamples.Simulation.WeakAxis"] ] // Head
We should of course have gotten
SystemModelSimulationData. During the evaluation the following error messages are given:
SystemModelSimulate::bld: Failed to build model DocumentationExamples.Simulation.WeakAxis.
SystemModelSimulate::bldI: Internal error: Stack overflow
I am getting the internal error message also for validating elementary classes in WSM 12.1 and when trying to run introductory example models in WSM 12.1 Simulation Center.
Is anybody else experiencing these errors? Since over the easter break I will not be able to reach WRI or MathCore: Have you found a fix? (Maybe a Windows 10 update is the culprit here?)
I tested on a separate Windows computer using my home license and there the example worked. So it seems that one can narrow down this issue to cases, where WSM and Mathematica are installed on the same machine. This predominantly appears to be a Wolfram System Modeler issue.