How to Close a Lightning Payment Channel ~ Bitcoin to the Max
World Crypto Network
There is a possibility of irreparable differences on closing if one node considers the other's output too small to allow propagation on the Bitcoin network (a.k.a. "dust"), and that other node...

https://relay.towardsliberty.com/f04ce0b1ad2efdd6bcdadac4e34dde34196590c78fd8353ce024ac45c720d2b2.mp4
https://www.youtube.com/watch?v=p9K1A5h7qJE