Sheriff-o-Matic is supposed to show more bug information for linked bugs but this hasn't been working on prod for a while. 

The solution I used (concatenating bug IDs into a single Monorail API request) is a bit unstable because one badly formatted data point can ruin the whole Monorail query, so no bug information is returned in this case. 

I think this is probably what's happening. Alternatively, it could be running up against a limit/timeout of some sort if there are too many bugs. 

So I will need to rethink this and come up with a better system that won't fail so easily.