Realtor says under contract but it is listed for auction in 3 day

[Evelyn Roper]

I have been interested in a REO SFR and have seen it several times (for several months) on MLS, Zillow, Realtor.com and Auction.com. The price has been reduced several times already. Yesterday, I called my realtor and scheduled to look at the property tonight. I planned on putting in a cash offer as I know the home will not qualify for financing. The realtor called me this afternoon and informed me that the property was under contract so I would be unable to look at it. It was no longer listed on Realtor.com but later this evening it showed up on auction.com with an auction date beginning on April 18. Is this normal? Does the realtor just not want to deal with it? Should I try to purchase my first property without a realtor using auction.com? I have heard a few horror stories but we are very interested in this house, the price is great and it would make a good rental (or flip) property. it is close to home and requires mostly cosmetic fixes. (I haven't viewed the property inside though the exterior appears to be in decent shape.) If anyone can give me any insight into this situation I would be incredibly grateful! Total newbie here :)