I upgraded to iOS13 and updated the reminders app. It has pulled in all my lists EXCEPT for the main “Reminders” list. This list is visible in iCloud web app but not the reminders app on my phone.

I received a message when I opened my reminders that I could upgrade to a new reminders app for more functions and I clicked on upgrade. The next thing I knew all my reminders disappeared and I got no upgrade. Does anyone know what happened and will iCloud restore my reminders? How do I make that happen if it is possible? (I included Reminders to be saved in iCloud when I set it up.)

Did you tap on the Reminders under My Lists? In the next screen tap on the 3 circles in the upper right to reveal more options.

FYI, my completely impractical solution for Reminders issues which I'm cautiously optimistic might have resolved most of my Reminders problems ...

https://discussions.apple.com/thread/251001722

See this explanation about the new reminders app and what happens when you upgrade. Upgrading the Reminders app in iOS 13 - Apple Support

Same problem too, for now i'v give up and put all my reminder in local mode only on the iPhone. I really rely on reminder and I can't allow missing some reminder. Waiting for patch...

Don’t understand the description.

Wow. Major glitch.

I am having the same problem everyone on the board is having, is there still no fix to this.

I upgrade iso 13.3 after that my phone call list deleted.how can get my phone call list?

Please APPLE!!! We need a fix for this!

Please APPLE!!! We need a fix for this!

Please APPLE!!! We need a fix for this!

ALL 263 of my reminders in various created lists are gone. They DISAPPEARED after upgrading to the new Reminder list app.

I deleted then reinstalled Reminders app, which resolved the issue

I have sent many bug reports on this and still no fix. The issue seems to be in icloud because the reminders are not syncing there either with my iphone 11.