Hello, I'm using Ml-agents 1.0 Release 3: I've been training my agents without problem with these behaviour parameters: Configuration: 3 branches for the vection action, name of the behaviour: Agent_3Actions With this configuration the training works fine and without problems. Normal Output for this case: However, when I try to add a new branch to the Vector Action, the learning randomly stops and I get an "IndexError". Configuration: 4 branches for the vection action, name of the behaviour: Agent_4Actions Output when it stops training: I'm not sure, but I think the error appears when the learning process tries to save the model. I've made sure to use a different trainer_config.yaml for each case and that the Behaviour Name is the correct one. Any ideas? I appreciate any help with this issue. Cordially, Diego.