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As of today I am once again able to pay, using my Cash App, an LN invoice from Blink.sv, mint.minibits.com, etc. -- but only when I have a sufficient BTC balance.

Paying from my USD balance (i.e., when my Cash App BTC wallet balance is 0 or less than the amount of sats for the LN invoice), then I don't even get to the Confirm (i.e., enter PIN) step before seeing the "Sorry, your [...]" message.

So if it was a liquidity issue -- that now appears to have been resolved, at least for the (very small size) amounts I'm using for testing (all between 100 sats and 500 sats).

There remains what is, presumably, a regression I'm experiencing with Cash App where the LN invoice would be paid with USD that behaves differently than when the LN invoice would be paid with sats (BTC). This is on Android, Cash App v5.53.0.

For the "pay from USD balance", do you have dollars already on Cash App or is it trying to pull from your bank account? If the latter it could be your bank declining the transaction. We have a fix coming soon to give more specific feedback on failure for dollar funded lightning payments, sorry it's unclear right now. Try adding cash to your cash app balance first then doing the payment, it should work then or tell you if the bank declined the cash in.

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Boom. Ok, here's the issue.

How to replicate:

Create an LN Invoice for an amount that is under $1 (e.g., 1,000 sats), from ANY wallet or service.

In Cash App:

  • Have BTC Balance 0 sats
  • Scan or Paste the the LN invoice

Observed result: "Sorry, your withdrawal could not be processed".

Expected result: Presentation of the Pay $n.nn page, with "Confirm and pay" and "Cancel" buttons

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I have dollars (USD balance), no sats (BTC balance). When I try to pay an LN invoice from some wallets, it succeeds.

When I try to pay an LN invoice from other wallets, specifically attempted today again ... Blink.sv, mint.minibits.cash, and coinos.pro, ... it fails.

There's another detail I just realized could be a factor -- I'll send that to your nostr.

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Update: Figured it out. Cash App won't pay LN Invoices < $1 when paying with USD balance: #1502321

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