[Bug]: Top-Up Invoices didn't work for LN with Blink backend - LNURL got disabled

Author: mp21-orgCreated Sep 8, 2026Updated Sep 15, 2026

What is your BTCPay version?

BTCPay Server v2.4.4+2d5a0d807

How did you deploy BTCPay Server?

Docker

What happened?

I had a store setup that worked with older versions and allowed my users to pay with LNURL top-up invoices. After the Update to 2.4.4 I re-enabled Top-Up invoices and LNURL-Withdraw/NFC payments but it still didn't work.

Had this in the Invoice details:

BTC-LN: Payment method unavailable (Impossible to create lightning invoice (Blink lightning-address connections cannot create an amountless (top-up) bolt11 invoice. This is expected: BTCPay falls back to the LNURL payment method for top-up invoices, where the payer chooses the amount in their wallet.))

After checking again I noticed that LNURL was disabled. Not sure what caused this change. I don't remember having done this myself.

How did you encounter this bug?

see above

Relevant log output

bash
none

What browser do you use?

Firefox on Win11

Additional information

none

Are you sure this is a bug report?

  • I confirm this is a bug report

Source: btcpayserver/btcpayserver