All rules are NA when using rulefit in R

[rjordan-hdai]

Previously when I used the h2o rulefit in R, training a model called, rfit, say, rfit@model$rule_importance$rule would actually show the variables that go into a nonlinear rule. Now when I use it, having updated my version of h2o (though I don't know if the update has anything to do with it), it doesn't show anything for rules but NA. I am attaching an example. Note that the third row corresponds to a rule or rules, but it says the rule is NA. Any help/suggestions would be appreciated. For the applications I'm working on, I do need to know the variables and splits involved in the rules...