A new exit has recently opened on I-40 in west Tennessee, exit 28 to TN 196. That's not in the HB either on I-40 or TN
Google Maps satellite view, which shows the interchange under construction, indicates TN 196 was relocated slightly to a new bridge over I-40. Among our menu of open-source maps available in the Waypoint Editor, at least HERE Normal Day shows the interchange is open and its location.
I have a photo I can post if it helps, though I think the only help it can provide is to confirm the exit number.