I tested your issue on my vault but dataview worked–did not return a “nothing found” message. You might wish to check to ensure that your folder name is CBC rather than cbc; i.e., that the folder name is all-cap rather lower case or some combination of upper and lower cases. Dataview returned a “nothing found” message when I supplied my folder name in a case different from that in the file system. I named the folder on which I tested your issue “miscellany.” Dataview listed the files in it when I supplied the name in that case, i.e., “miscellany”. However, it returned a “nothing found” message when I supplied it as “Miscellany” or “MISCELLANY.” So I suggest you check that you supplied the folder name in the proper case.