Is the liquidity and route hints. Do you run the latest version of Alby Hub? Now having a LDK backend, not sure how Alby is updating it too. LDK recently released a new version.
I updated a few days ago, because I was having a different issue.
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hmmm maybe is time to invite here @alby and @MoritzK to give more clues about how an Alby Hub self hosted with default LDK and private channels is using route hints to build a LN invoice.
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