Thanks, @sweaglesw and @ebender !
Certainly still an open question 
Certainly using --yy-rules! Always have been.
Do you mean, such that the content of the %suffix differs from the rule name?..
Generally, every token in any sentence will go through an “inflectional” rule of this sort (though in most cases, the rule’s name is the same as the “%suffix”), and some sentences are parsing just fine.
There is something weird about this one (and probably lots of others which I simply haven’t looked at), and it is tempting to think that the issue is with the weird %suffix rule however that rule is in the chart and the one that isn’t in the chart is the syntactic lexical rule…
Fwiw, changing the definition of the %suffix rule such that the “stem” matches the rule’s name doesn’t help… Same chart, as far as I can tell.