I have a new gateway registered in v3 and a device with the TTN mapper intergration. Neither device shows up in TTN Mapper even when searching for the specific device ID. The gateway was registered in v2 and used to show data. I deleted the gateway and re-added it in v3.
If I search the gateway eui in Advanced Maps I see the old data.
I’m guessing that the move to v3 is a great deal of work and that it will eventually work. Meanwhile I’m patient and appreciate the work everyone is doing.