The Neptune TL has some issues. I've stated in the past that some types of loads don't turn over very well, if at all. I once watched a load of twenty-one shirts not rollover AT ALL through the entire wash period. I kept watching, did not assist, hoping the tumblers would eventually get a grip, but nope. I canceled the cycle when drain begin, restarted and helped the load rollover several times through another full wash period.
It has trouble distributing some types of loads for a balanced spin. It tries distribution tumble three (or four) times on the interim spins, gives up and resorts to a drip-drain. It tries more diligently on the final spin, multiple distribution attempts, will refill and repeat the final rinse, I think twice, before giving up and beeping for help.