Haha ... remember that lnd is not tested with knots. There was a guy last year who paid ~0.7 BTC to the miners as fees with the combination of knots and start9 due to a start9 config bug.
Discussion
🫠 so is it a knots or an lnbits issue?
I can send (via my own nwc implementation via lnbits) but nostdress which I use for lnadresses errors now. At this function call that was an error in pre release versions
As regular lnd works and there was an issue in pre release I assume this is a bug or breaking change in lnbits