Thank you for taking the time to visit the Community to post your issue, although I apologize that you haven't received a response.
At this time I would recommend contacting support directly for advanced troubleshooting steps.
Quicken Care has the tools to initiate a screen share to view the issue in real-time.
you for reaching out on the community and telling us about your issue. I do
apologize for the issue you're having. That is quite odd. I'm wondering if it might be an issue with the specific reminders themselves. In this case what we can try is to see if we were to remake one of the ones that's having issues if we experience the same problem. Try testing it out on any one of the ones that are having issues.
Once you've got a chance let us know if the new duplicate one is also having the same issue. From there we'll see what we can try next.