Fsitego Self Cleaning Cat Litter Box

I will first start off by saying this thing is great. It works great smell is minimal and cats took right to it. Right out the box this thing had Bart of the plastic not attached correctly before being screwed together. No problem. I fixed it. Set it up, the app connected easily and it functions as it should. It sifts well, no litter dumps on the floor, cats trigger it to stop as it should for safety. Fantastic. But I noticed it kept stopping when it would go to clean and it would say “ Door anti-pinch triggered! “. Mostly it would continue after pushing “clean” or I’d have to reset it. I switched it to manual mode and started watching it when it would clean. I noticed the whole drum would “clunk” then stop shortly after it got to a certain point and only sometimes wouldn’t let me continue. I grabbed the drum and lifted up on it and it clunks again back into place. Odd. Then I could resume the cleaning. Sometimes it wouldn’t let me resume at all I’d have to reset it. I lifted the whole drum out and realized the clunk was the little track on the side of the drum is dropping off one of the little roller wheels. I took it apart and sure enough one of the wheels was wiggly. It was simply one loose screw causing all the problems. I took the whole thing apart to find that the nut in the back as been grinding away at the plastic because it was loose and the plastic there to “hold” it is not very sturdy plastic. I took the other three screws out around the roller housing so I could grab the nut with a pair of needle nose pliers and hold it while I tightened the screw. Put it all back together and now the thing works flawlessly. I added pictures of my app notifications before and after the fix, pictures of the side that was loose and side that was fine and a video of the problem. I share this because it is very expensive machine with a very easy fix if this may be the issues others are having. It is simply the drum off track triggering the pause. But also that maybe the manufacturer will take this into account and fix it before shipping out devices with such a simply fix because I’m sure many people have returned it because of this. Hope this helps ☺️ it’s great now. Works perfect. Absolutely love it. Cleaning it is easy.