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Machine2 has under 100 Sats
That could be the issue (see the buffer spec link I posted). If is the only channel with that node try moving with keysend from node1 to node2 some more sats, try a bit more than the channel reserve (around 1%).
Yes, when you create the channel you choose between private and public and you cannot switch afterwards.
193 sats \ 1 reply \ @Wumbo OP 23 Aug
That was the issue, Thank you.
For anyone in the future that might read this:
In the Core Lighting web UI, goto channel details there is a "Spendable" amount. Make sure this reads as greater than zero. Which is different from "Maximum Send" amount which shows your whole channel size balance. ( not reflecting the reserve amount)
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If you own the two nodes, the keysend is key to maintain some kind of balance in the channel and avoid this problems.
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