normalise Mueller matrix error in 3D mode

[jiema-astro]

I encountered the following error when running basic mcfost para command:
Computing dust properties ... ERROR: normalise_Mueller_matrix: exact normalisation is smaller than numerical integration

Minimal setup:

#Grid geometry and size
  1                          
  100 90 100 10            

#Grain properties
 1                              
 DHS  1 1 0.  0.8  0.9        
 Draine_Si_sUV.dat 1.0          
 1                                 
 0.3 1000.0 3.5 50          

The error appears only in 3D mode. The same setup works in 2D mode with 100 90 1 10 in geometry, or using a smaller distribution of dust sizes 0.3 30.0 3.5 50 for example.

[cpinte]

Hi,
Could you please try with v4.1.13 ?
many thanks,
Christophe