Hey! It sounds like your AirTag is still working with Siri, but it might not be showing up in the Find My app. Try these steps:
Restart your iPhone – Sometimes, a simple restart helps things work better.
Check Find My Settings – Go to Settings > Your Name > Find My. Make sure Find My iPhone is turned on.
Update iOS – There might be a new update that fixes this. Go to Settings > General > Software Update.
Re-pair the AirTag – If it’s still not showing up, try unpairing the AirTag and pairing it again.
If that doesn’t help, you might want to contact Apple Support. Hope this helps!