Relaying the discussion from the private tracker (to keep user privacy intact):
The user attempted several times to spend the entirety of their balance to a node in the network that is not their peer
This kind of draining a channel requires special support in the software as we need to pay the routiong fees to forwarding nodes, which is not being taken into account by the user.
Closing this issue as it has more to do with the user trying something that LN does not support, rather than an issue with GL or CLN.
Node ID: 020ee42d02323fa7d10300bb7148c93e1bcb7944bc7510c605d03acfc5f9b41bb1 Timestamp: Thursday 02/05 at 17:22 CET
https://github.com/breez/breez-sdk-relai/issues/31