I have a turntable to digitize old family albums. On some of the albums the auto shut off thinks the album is completed before it actually is. The arm will raise and return back to the starting position before the record has finished playing.
This player has had a fair number of problems reported to this forum. The only way to solve these problems is through a technician. Usually the unit has to be sent away for repairs. If you have your receipt and it is still in warranty, send it off.