What steps will reproduce the problem?

1. Using it in MC EDIT: Actually anywhere.
2. using /range 15 displays nothing even when standing on top of people.
   EDIT: I've determined that /range 10 and /range 20 seem to work as expected. Is this a classic limitation?

What version of BigWigs are you using? (Stating 'latest' is not useful)

BigWigs 5 (793f905) Wow Classic

Do you have an error log of what happened?

N/A

Any additional information? (example: WoW language if not English) (Attach screenshots here if available, do not link externally)