Under Edit Scheduled Transaction, click Template Transaction, attempt to edit a value in any field of the transaction then move focus to another line throws an error: "This transaction is already being edited in another register. Please finish editing it there first."

Since it's a scheduled transaction, it seems illogical for the transaction to be open in another register.

The workaround is to delete the transaction from the SX editor window and re-add it, but this is not ideal because many of my SXs have multiple transactions in a particular order.