Repeated "non-standard input" logs (many of them)

[samo-sato]

My LND node repeatedly logs the following warnings. Is it worth creating issue on LND Github page?
okt 12 00:48:58 node lnd[417404]: 2026-10-12 00:48:58.947 [WRN] BTWL: Received non-standard input sig=, witness=[] okt 12 00:48:58 node lnd[417404]: 2026-10-12 00:48:58.947 [WRN] BTWL: Received non-standard input sig=, witness=[] okt 12 00:48:58 node lnd[417404]: 2026-10-12 00:48:58.947 [WRN] BTWL: Received non-standard input sig=, witness=[] okt 12 00:48:58 node lnd[417404]: 2026-10-12 00:48:58.947 [WRN] BTWL: Received non-standard input sig=, witness=[] okt 12 00:48:59 node lnd[417404]: 2026-10-12 00:48:59.448 [WRN] BTWL: Received non-standard input sig=, witness=[] okt 12 00:48:59 node lnd[417404]: 2026-10-12 00:48:59.448 [WRN] BTWL: Received non-standard input sig=, witness=[] okt 12 00:48:59 node lnd[417404]: 2026-10-12 00:48:59.448 [WRN] BTWL: Received non-standard input sig=, witness=[] okt 12 00:49:00 node lnd[417404]: 2026-10-12 00:49:00.163 [WRN] BTWL: Received non-standard input sig=, witness=[] okt 12 00:49:00 node lnd[417404]: 2026-10-12 00:49:00.163 [WRN] BTWL: Received non-standard input sig=, witness=[] okt 12 00:49:00 node lnd[417404]: 2026-10-12 00:49:00.163 [WRN] BTWL: Received non-standard input sig=, witness=[]

The warning appears repeatedly in the LND systemd journal:
sudo journalctl -u lnd -f

The node currently reports synced_to_chain: true

LND version: 0.21.2-beta
Bitcoin backend: Bitcoin Core v31.0.0
OS: Debian GNU/Linux 13 (trixie)

[NotAFlightRisk]

Not worth an issue - it's harmless noise, and there's already a fix waiting.

btcwallet (the wallet library inside lnd, which logs as BTWL) checks the inputs of the transactions bitcoind sends it, from the mempool and new blocks. An input with no scriptSig and no witness at all (a pay-to-anchor spend is one) can't be traced back to an address, so it logs this warning and skips it. That doesn't affect your wallet or channels - spends of those are matched by outpoint before that step, and payments to you by the outputs.

btcsuite/btcwallet#1350 drops it to debug. It's approved but not merged yet, so 0.21.4-beta still logs it at WRN.