I had problems when I shut down a LND node a while back. It was over my head technically difficult, but I also heard about chantools before I gave up on trying to figure it out. I ended up enlisting help from a trusted bitcoiner / node operator; Semisol. Semisol is usually on Nostr.

You can find him as npub12262qa4uhw7u8gdwlgmntqtv7aye8vdcmvszkqwgs0zchel6mz7s6cgrkj. He's trustworthy enough to help with lost sats, from my experience. Not sure if he has the time to hunt down more lost sats, but it's worth a shot to ask him.

I'm 99.99% sure he used chantools somehow to recover my stuck sats.