I'm experiencing the same issue.  We use recurring transactions with reminders to create a shell for most of our monthly bills and then update invoice numbers and amounts when the invoice is received.  Up until a few weeks ago, we could find the transaction in the reminder list, make the updates and save it.  The transaction would then be automatically removed from the reminder list until the next scheduled reminder date.  

Now, it is a 2 step process.  We have to create/edit the transaction from the reminder list.  Then we have to skip the transaction in the reminder list to manually remove it from the list of transactions that need to be recorded. 

The reminders are still functioning for certain transactions though.  If the reminder is for a deposit or a journal entry, the reminder disappears once you create and edit the transaction from the list.  If the reminder is for a bill, it doesn't function as it used to though.