After changing some material values in my project “GaN PCB” i constantly end up in failed simulation runs. The event log only says “an error occurred”. after trying several things it sticks with the same problem. Is it possible to help me get it up and running again? Thanks in advance.
[GaN PCB Project]
Hi @jluts!
Having a look at this in more detail later on. Edit: Ok interfaces are not the problem as we are dealing with a heat transfer simulation instead of CHT. Please check your volumetric flux boundary condition. You uploaded a table stating that the volume heat flux is at 5 meters in X whereas the domain you are working with is way smaller than the dimension entered. Make sure this is correct and test it again - let me know how things go! 
Cheers,
Jousef