Device metrics issue

A few years ago, I used the legacy Helium console and Cayenne to view GPS location of my Cubecell device using Jas Williams Github code. Cayenne is no more, so I am attempting to follow the most recent instructions that I can find to make a functioning Cubecell Helium mapper.
I am following the instructions to the letter, but in the HeyIot console, I am not getting the lat and lon measurements in Applications-> Device Metrics although I am receiving the lat and lon by viewing the packet under Applications->Events. Any suggestions on how to get the lat and lon to populate in the Device Metrics section is greatly appreciated.