RANDOM FAIL IN HYPERSTUDY SIMULATION WITH FLUX MODEL

Hi,

i use hyperstudy 2020.1 in order to optimize a 2d flux model 2018.1 ("TESTCASE_INI_TRAN_ALU.F2G.FLU") using a post processing script ("Postprocessing_Python_File.PY"). In this script i simply create a lot of scenarios until reach the final simulation.

During the hyperstudy DOE or OPT, sometimes and randomly, during the post process of the script, the run fail during the calculation of the scenario. With randomly i mean that if i simulate the same model with hyperstudy, sometimes there is no fail, sometimes the fail comes in a different scenario (sometimes in the first scenario, sometimes in the ninth exc.) The strange thing is that if i run the post processing script in the same flux model, the simulation always proceeeds until the end without any problem (see the Flux2D_bak.report files for the two cases). The same problem occured also with different release of hyperstudy (2017,2019) and flux (2018 and 2019).

Note: line 13755 for the fail simulation.

What kind of problem is this? How can i fix this?

Thank you for your time.

Mattia