We should be able to step through a node once until it executes. If the node is a BatchStep, the parent nodes should execute until the batchstep has enough input to execute or until there is no more outputs left from the parent dependencies, whichever happens first.
We should be able to step through a node once until it executes. If the node is a BatchStep, the parent nodes should execute until the batchstep has enough input to execute or until there is no more outputs left from the parent dependencies, whichever happens first.