Tom, can you provide a little more info? 

• was this a different IRIS instance than the one you successfully connected to from VS Code? was it remote? what port # did you use in the successful case, and what # in the failed one?
• i think the error message is from VS Code, is that right?

they were in one of the lists in the section David linked to, but now they are in all four. thanks for catching this David!

inadvertently omitted, sorry. will add to the doc as soon as i get a chance.