I found another failed audit, and after searching the logs there’s a delete entry then an audit entry afterwards.
sudo docker logs storagenode 2>&1 | grep "3HLJ43IJTTMWLAACFQZSASKOQ4VUBRUHXA7ZP2GY532QNI4CQOSQ"
2019-09-21T16:41:19.023Z INFO piecestore deleted {"Piece ID": "3HLJ43IJTTMWLAACFQZSASKOQ4VUBRUHXA7ZP2GY532QNI4CQOSQ"}
2019-09-21T17:09:48.349Z INFO piecestore download started {"Piece ID": "3HLJ43IJTTMWLAACFQZSASKOQ4VUBRUHXA7ZP2GY532QNI4CQOSQ", "SatelliteID": "118UWpMCHzs6CvSgWd9BfFVjw5K9pZbJjkfZJexMtSkmKxvvAW", "Action": "GET_AUDIT"}
2019-09-21T17:09:48.350Z INFO piecestore download failed {"Piece ID": "3HLJ43IJTTMWLAACFQZSASKOQ4VUBRUHXA7ZP2GY532QNI4CQOSQ", "SatelliteID": "118UWpMCHzs6CvSgWd9BfFVjw5K9pZbJjkfZJexMtSkmKxvvAW", "Action": "GET_AUDIT", "error": "rpc error: code = NotFound desc = file does not exist"}