Shared reminder list only syncs over wifi
I've shared a reminder list with my partner. I notice that it only syncs when my phone is connected to wifi. How can I get it to sync over mobile data / 4G as well?
iPhone 6s, iOS 11.0.3
Location based reminders are available in iOS 8 or later on iPhone 4 and later, iPad Pro (Wi-Fi + Cellular), iPad (4th generation Wi-Fi + Cellular), iPad Air and later (Wi-Fi + Cellular), iPad mini 4 (Wi-Fi + Cellular), and iPod touch (6th generation).
Per -- Use Reminders on your iPhone, iPad, or iPod touch - Apple Support.