too many connection, but I'm looking for 2 clusters

I tried to make a "vast swath" of references into a single subvi and LabVIEW gave me this:

My subvi would have 4 outputs: a string array, a cluster of control references, an error initialization, and a state-enum.  I'm not actually providing any explicit inputs.

So my question is: What are the 28 things that I (clearly) exceeded, if not the references?  Are there invisible things passed to the sub-vi, which I overwhelmed?  What is going on?