Hi Mikalahpittman,
Thanks for connecting with us here in Apple Support Communities. We can see that you have some questions about AirTags updating location. The article you reached us from, Find your keys, wallet, and more with AirTag, has some great info on this.
•If the AirTag is within range of your device or the Find My network recently detected it, you see it on the map. An updated location and timestamp appears under its name.
•If the AirTag isn't within range of your device or any devices in the Find My network, you see its last known location and timestamp. To be notified when your AirTag is within range of your device or detected by the Find My network, turn on Notify When Found under Notifications.
You mentioned that it wont refresh? Are you unable to search Find My for your AirTag?
Regards.