AdnilLinda Said:
"Unable to track my daughter's device in FindMy: My daughter is visiting in France. We both have location services on each other she sees me, I can't see her Any suggestions or solutions would be met with grattitude, Thanks!"
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Some Thoughts:
A. Use Siri:
Open Siri, and then say something like "Turn off, then on, Find My". Learn More Here: How to use Siri on your iPhone - Apple Support
B. Troubleshooting Find My on an iPhone:
Be certain Find My is set up correctly.
1. Set Up: Set up Find My On your iPhone, iPad, iPod touch, or Mac - Apple Support
2. Add: How to Turn On Find My for your iPhone, iPad, or iPod touch - Apple Support
3. Use: Locate a Device in Find My on iPhone - Apple Support