This appears to be a "stock" answer and is completely unhelpful. Why would anyone suggest that a customer contact support again when that customer is literally complaining about how unfruitful and time consuming it was to contact support originally?

This is clearly an issue that QB does not have a handle on and is unsure how to resolve for all of its customers.

To prove my point...

I did absolutely nothing that was suggested by employees throughout this thread; NOTHING. I did not go in and clear cookies. I did not go in and review start dates and end dates in my template reminders. And I most certainly did not contact support again. Why would I waste my time when I know this is not an issue on my end?????

Magically, on April 30th, this problem resolved for me, and all of my template reminders began disappearing after use and functioning the way they did before this issue started. Hmmmm....

Please stop making customers feel like this is an issue on their end and suggesting they need to educate themselves on how template reminders function. This is a QB problem plain and simple.