Hello Francisco and fmk,
I also have problem of python, when switch R2D version2 to verision 3.
When I run following scenario simulation, it works in R2D version 2 but can't work in version3. I try to edit the version 3's perference of Python path to be the same as the default python path of version 2, and it works.
The attached file is the input files for version 3. I would really appreciate it if you have any suggestions for this problem.