Unable to select scheduled reminders in iPhone calendar
Im unable to link my reminders app with my calendar app on my iPhone. Im using an iPhone 16pro on iOS 18.4.1
I have de-selected calendar in iCloud, deleted the calendar app, re-booted phone, reinstalled app etc, still the same. The scheduled reminders option cannot be selected in the calendar app, looks like Face ID could be an issue but the reminders or calendar apps do not even appear in the Face ID section. I have even disabled Face ID and it is still the same. In my calendar app when I click the + I only have the option to add an event, not a reminder. The annoying thing is that it all works fine on my iPad, I cannot see anything different in the app settings between phone and pad. I dont know what else to try, any advice appreciated.
iPhone 16 Pro