Implementation of a coupled boundary condition crashes
 

Hey,

First my case:
I have a multi region mesh which consists of, let's say, the regions A, B and C where different equations are solved. And I want to couple the regions A and B because there are similar equations solved. I'm using a multi physics solver like chtMultiRegionSimpleFoam.

I want to modify an already existing boundary condition ("compressible::turbulentTemperatureCoupledBaffleM ixed") from the chtMultiRegionSimpleFoam solver. When I test my modified BC the solver crashes with the message:

It seems that he can't find the polyMesh B which is created during the meshing procedure. I also used the search function and found similar problems but either the author found a solution and didn't post it or the problem was ignored because it was posted in an other thread.

Thanks in advance for your help!

Edit: the error message occurs when the coupling boundary condition for region A is called.