After forcibly closing the channel,an error log appears frequently.

[SevenLiquor]

network:regtest

This was a test of forcibly closing the channel that I conducted on the regtest network.After the channel was closed, the main funds were correctly returned to the wallet, but an error occurred every time a block was updated.

Since the main funds have returned to the wallet, I don't think this is a serious problem. Just want to know if this issue would cause any other problems if multiple forced shutdown channels occurred, because the following error message seems to keep popping up.

Error:

2025-09-09 16:04:47.078 [INF] GRDN: New block at height 83892
2025-09-09 16:04:47.789 [INF] LNWL: Web API returning 1012 sat/kvb for min relay feerate
2025-09-09 16:04:47.984 [WRN] LNWL: Web API does not have a fee rate for target=854, using the fee rate for target=4 instead
2025-09-09 16:04:48.182 [INF] LNWL: Web API returning 1012 sat/kvb for min relay feerate
2025-09-09 16:04:48.182 [INF] SWPR: Change amt 0.00000206 BTC below dustlimit 0.00000330 BTC, not adding change output
2025-09-09 16:04:48.182 [ERR] SWPR: Initial broadcast failed: create RBF-compliant tx: create sweep tx: tx has no output
2025-09-09 16:04:48.182 [ERR] SWPR: Removing monitor record=155, tx=0000000000000000000000000000000000000000000000000000000000000000, due to err: create RBF-compliant tx: create sweep tx: tx has no output
2025-09-09 16:04:48.182 [WRN] SWPR: Failed to publish input bb5eb21034f5638baabfbadda04d39be593b6fd5b4f9a29a6bb4d65f91f74581:0

Then I discovered that in the transactions where the channels were closed, two outputs of 330sat were not utilized.
This is a transaction for closing the channel.

{
  "txid": "bb5eb21034f5638baabfbadda04d39be593b6fd5b4f9a29a6bb4d65f91f74581",
  "hash": "a147fba65301806553528086666b75b0e85849fda7a04d26dd594b4274b66064",
  "version": 2,
  "size": 443,
  "vsize": 278,
  "weight": 1112,
  "locktime": 537693405,
  "vin": [
    {
      "txid": "b5270873d35a641b80ac991f188fa1dfb2bb6731e5a4d27b6122d8bd57907fe3",
      "vout": 1,
      "scriptSig": {
        "asm": "",
        "hex": ""
      },
      "txinwitness": [
        "",
        "304402202c4e3f14a2f4f4d4a88e6f41c9c637aa9aaf50ce2384f2244e199a2d5c8a158d02205d9204430f1873f8b1cee7a74e34125f4828f0fde2244d86c81aa305f3899e4d01",
        "3044022039c1b653f3d6e32c024fc0939653da0676a4a28f51997ae4edb2f856336a5fb4022065b58bd4716245dd264b3d1d51af1c2b6a891d42a909af05b64a11f4d499d05901",
        "522102cf31e3d0e4f93f0057b81e2d5858ff9023b5a59800b8b69945cd2c5036f9464b2103de1f51bd749fb9f52aa40b4efdc2acf7a859c5962577196cb4f187172bb61ec152ae"
      ],
      "sequence": 2162644685
    }
  ],
  "vout": [
    {
      "value": 0.00000330,
      "n": 0,
      "scriptPubKey": {
        "asm": "0 5a7acec4f60d3b0909eb38909cadbb99ee05f7e44d4eb3e072c2e2db9cc78705",
        "desc": "addr(bcrt1qtfava38kp5asjz0t8zgfetdmn8hqtalyf48t8crjct3dh8x8suzsjnwp2a)#glljtzeq",
        "hex": "00205a7acec4f60d3b0909eb38909cadbb99ee05f7e44d4eb3e072c2e2db9cc78705",
        "address": "bcrt1qtfava38kp5asjz0t8zgfetdmn8hqtalyf48t8crjct3dh8x8suzsjnwp2a",
        "type": "witness_v0_scripthash"
      }
    },
    {
      "value": 0.00000330,
      "n": 1,
      "scriptPubKey": {
        "asm": "0 e44f5caf167f661a2a3db520eea76a15e1ced72d633e3dfa74db32a26abdcff2",
        "desc": "addr(bcrt1qu384etck0anp523ak5swafm2zhsua4edvvlrm7n5mve2y64aeleqklf7vp)#h30gv460",
        "hex": "0020e44f5caf167f661a2a3db520eea76a15e1ced72d633e3dfa74db32a26abdcff2",
        "address": "bcrt1qu384etck0anp523ak5swafm2zhsua4edvvlrm7n5mve2y64aeleqklf7vp",
        "type": "witness_v0_scripthash"
      }
    },
    {
      "value": 0.00006600,
      "n": 2,
      "scriptPubKey": {
        "asm": "0 307c07a414a50e8502608b9a75de0197b8730c7bd33e7fd8e993dbabc657894a",
        "desc": "addr(bcrt1qxp7q0fq5558g2qnq3wd8thspj7u8xrrm6vl8lk8fj0d6h3jh399qa9hsgj)#sdcpylxt",
        "hex": "0020307c07a414a50e8502608b9a75de0197b8730c7bd33e7fd8e993dbabc657894a",
        "address": "bcrt1qxp7q0fq5558g2qnq3wd8thspj7u8xrrm6vl8lk8fj0d6h3jh399qa9hsgj",
        "type": "witness_v0_scripthash"
      }
    },
    {
      "value": 0.00389930,
      "n": 3,
      "scriptPubKey": {
        "asm": "0 3317bb64ad7ce0c39d52efa36eecd5b6db93e46494e4a1920f85142b984b5a8d",
        "desc": "addr(bcrt1qxvtmke9d0nsv882ja73kamx4kmde8eryjnj2rys0s52zhxztt2xsymsxe0)#ns5vzgjd",
        "hex": "00203317bb64ad7ce0c39d52efa36eecd5b6db93e46494e4a1920f85142b984b5a8d",
        "address": "bcrt1qxvtmke9d0nsv882ja73kamx4kmde8eryjnj2rys0s52zhxztt2xsymsxe0",
        "type": "witness_v0_scripthash"
      }
    }
  ],
  "hex": "02000000000101e37f9057bdd822617bd2a4e53167bbb2dfa18f181f99ac801b645ad3730827b50100000000cd56e780044a010000000000002200205a7acec4f60d3b0909eb38909cadbb99ee05f7e44d4eb3e072c2e2db9cc787054a01000000000000220020e44f5caf167f661a2a3db520eea76a15e1ced72d633e3dfa74db32a26abdcff2c819000000000000220020307c07a414a50e8502608b9a75de0197b8730c7bd33e7fd8e993dbabc657894a2af30500000000002200203317bb64ad7ce0c39d52efa36eecd5b6db93e46494e4a1920f85142b984b5a8d040047304402202c4e3f14a2f4f4d4a88e6f41c9c637aa9aaf50ce2384f2244e199a2d5c8a158d02205d9204430f1873f8b1cee7a74e34125f4828f0fde2244d86c81aa305f3899e4d01473044022039c1b653f3d6e32c024fc0939653da0676a4a28f51997ae4edb2f856336a5fb4022065b58bd4716245dd264b3d1d51af1c2b6a891d42a909af05b64a11f4d499d0590147522102cf31e3d0e4f93f0057b81e2d5858ff9023b5a59800b8b69945cd2c5036f9464b2103de1f51bd749fb9f52aa40b4efdc2acf7a859c5962577196cb4f187172bb61ec152aedd8c0c20",
  "blockhash": "76d189aa7052206b8f557871f1ef2424c543a5c7649b09f9dd38833087fb0f16",
  "confirmations": 158,
  "time": 1757402075,
  "blocktime": 1757402075
}

[hieblmi]

The 330 sat outpoints are called anchor outputs that allow fee bumping a commitment transaction in case a timeout on it is imminent. These outpoints aren't swept by your node since it would be uneconomical to do so, see #10117