Access issue with bn.completeInstantion()

[kenneth-lee-ch]

I ran the following code and wanted to reuse the instance from bn.completeInstantion(). Basically, I was hoping to get the joint prob via different bayesian networks with the same dataset.

from pyAgrum.lib.discretizer import Discretizer
import pyAgrum as gum
 list_of_I = []
 for dag in dags:
        bn = discretizer.discretizedTemplate(joint_df)
        addArcs(dag, bn)
        learner = gum.BNLearner(joint_df, bn)
        learner.useSmoothingPrior()
        learner.fitParameters(bn)
        I = bn.completeInstantiation()
        list_of_I.append(I)

for I in list_of_I:
    I.fromdict(sample_x.iloc[0].to_dict())
     prob = bn.jointProbability(I)
     joint_probs.append(prob)

The program will terminate immediately and say

Segmentation fault (core dumped)

Any idea on how to resolve this issue?