Try the following steps and see whether you can recover the reminder that you had attempted to set.
1. Check Recently Deleted:
- Open the Reminders app.
- Go to the Recently Deleted folder (if available) to see if the reminder is there.
2. Search for the Reminder:
- Use the Spotlight Search on your iPhone by swiping down on the Home Screen.
- Type in keywords related to the reminder to see if it appears.
3. iCloud Recovery:
- If your reminders are synced with iCloud, you can try restoring them:
- Visit 👉 www.icloud.com on a computer.
- Log in with your Apple ID.
- Go to Account Settings ➡️ Advanced ➡️ Restore Calendars and Reminders.
- Select a backup from before the reminder disappeared and restore it.
4. Check Other Devices:
- If you use multiple Apple devices with the same iCloud account, check the Reminders app on those devices. The reminder might still be visible there.
Axel F.