The Rainy Day Fund Sweepstakes is showing that I already entered for today. I haven't entered that sweepstakes, today. It doesn't show on my redemption list, either, in Transaction History since yesterday's entry.
I was trying to enter this sweep today, but, when I clicked on "All Rewards" and hit see more until I could get no more rewards "boxes" to display, it did not show the Rainy Day Sweepstakes. I reloaded the page and did it over again (expecting different results), but, no Rainy Day Sweepstakes.
I then reloaded and used the filter and chose "Sweepstakes" from the dropdown box and clicked on "Apply" and it appeared. Afterward, I refreshed the Redeem page and clicked all the "see more" buttons that would come up as usual and voilà(!) it appeared in the list of rewards.