latest Matlab 2025b simulation error :The module cannot be solved because the algebraic ring contains one or more modules that do not support the assignment of algebraic varia

In the past i creat a model with Matlab 2023A version, this model can work sucessfully, unfortunally , i copy this model to another computer and running with Matlab 2025b simuilnk , simulation result shows an error.

it describe :

The algebraic loop containing the module ‘ThermalMdl_IGBT/Thermal_Model/Zth_Top/Diode_Top_1’ cannot be solved because it contains one or more modules that do not support algebraic variable assignment, such as Stateflow graphs, non-virtual subsystems, modules with complex output signals, or modules whose outputs have discrete sampling times or non-double-precision data types.

I checked every parameters in this model ,no any difference comparison with the old one. It's been bothering me all day, and I still haven't figured it out.

[Yifeng Tang]

if you could post both models, it'll help the community better diagnose the issues.

[kai]

The model now works well , it is very curious.