Hi:
When I use TransportMaps for hidden Markov model, I got an error "AttributeError: 'NoneType' object has no attribute 'reset_counters'" when I run push_R0_rho.minimize_kl_divergence(). The thing is that if all the observations are not missing value, then the error didn't appear. But when the observation has some missing value, for example, y[1] = None, then the error occur. Where is the problem?