Unable to locate my lost iPhone using Find My
I lost my phone yesterday (it may have been stolen, I'm not sure) and I am trying to put it in lost mode to keep my information safe. However, my phone is not showing up in the device list on find my. I know that it won't necessarily show a location, but all of my other devices--including old phones which have been powered off for years--show up in the device list. My phone was definitely connected to find my, as I used the app before losing the phone. I haven't been able to find anything helpful about this online. Anyone know a solution?
[Re-Titled by Moderator]
iPhone 12