I noticed my node was not syncing, and through some debugging on #bitcoin-core-dev it seems like it was caused by running out of disk space which left the node in a desynced state, with the valid chain marked as invalid.

After freeing up some space and doing `reconsiderblock` it fixed it.

Comments from @sipa:

> Ugh. That is bad. Out of disk space should not result in database corruption.

> Database errors propagating up and being interpreted as (permanent) block invalidity was one of the contributing factors to the BDB/LevelDB fork in the 0.7/0.8 transition. 

logs:
```
2022-09-05T00:28:55Z UpdateTip: new best=000000000000000000087e337539b369b19570a88c493725020266387d22dac0 height=752167 version=0x2ce8e004 log2_work=93.70770
7 tx=761139817 date='2022-09-01T15:00:06Z' progress=0.998887 cache=146.8MiB(1101860txo)
2022-09-05T00:28:55Z Fatal LevelDB error: IO error: /home/jb55/.bitcoin/chainstate/2963623.ldb: No space left on device
2022-09-05T00:28:55Z You can use -debug=leveldb to get more complete diagnostic messages
2022-09-05T00:28:55Z *** System error while flushing: Fatal LevelDB error: IO error: /home/jb55/.bitcoin/chainstate/2963623.ldb: No space left on device
2022-09-05T00:28:55Z Error: A fatal internal error occurred, see debug.log for details
2022-09-05T00:28:56Z ERROR: ProcessNewBlock: ActivateBestChain failed (System error while flushing: Fatal LevelDB error: IO error: /home/jb55/.bitcoin/chains
tate/2963623.ldb: No space left on device)
2022-09-05T00:28:56Z ERROR: ConnectBlock: Consensus::CheckTxInputs: 221fa678c5c9953d6cd17e584f05c12ab10ba0f2fc8e8131e266f3f0e9819848, bad-txns-inputs-missing
orspent, CheckTxInputs: inputs missing/spent
2022-09-05T00:28:56Z InvalidChainFound: invalid block=000000000000000000079ba062298aa7cef1888f870c23e303a361c19b097ff8  height=752168  log2_work=93.707719  date=2022-09-01T15:13:42Z
2022-09-05T00:28:56Z InvalidChainFound:  current best=000000000000000000087e337539b369b19570a88c493725020266387d22dac0  height=752167  log2_work=93.707707  date=2022-09-01T15:00:06Z
2022-09-05T00:28:56Z ERROR: ConnectTip: ConnectBlock 000000000000000000079ba062298aa7cef1888f870c23e303a361c19b097ff8 failed, bad-txns-inputs-missingorspent, CheckTxInputs: inputs missing/spent
2022-09-05T00:28:56Z InvalidChainFound: invalid block=000000000000000000079ba062298aa7cef1888f870c23e303a361c19b097ff8  height=752168  log2_work=93.707719  date=2022-09-01T15:13:42Z
2022-09-05T00:28:56Z InvalidChainFound:  current best=000000000000000000087e337539b369b19570a88c493725020266387d22dac0  height=752167  log2_work=93.707707  date=2022-09-01T15:00:06Z
```

argsman.AddArg("-natpmp", strprintf("Use NAT-PMP to map the listening port (default: %s)", DEFAULT_NATPMP ? "1 when listening and no -proxy" : "0"), ArgsManager::ALLOW_ANY, OptionsCategory::CONNECTION);
#else
    hidden_args.emplace_back("-natpmp");
#endif 
    argsman.AddArg("-whitebind=<[permissions@]addr>", "Bind to the given address and add permission flags to the peers connecting to it. "
        "Use [host]:port notation for IPv6. Allowed permissions: " + Join(NET_PERMISSIONS_DOC, ", ") + ". "
        "Specify multiple permissions separated by commas (default: download,noban,mempool,relay). Can be specified multiple times.", ArgsManager::ALLOW_ANY, OptionsCategory::CONNECTION);
    argsman.AddArg("-whitelist=<[permissions@]IP address or network>", "Add permission flags to the peers connecting from the given IP address (e.g. 1.2.3.4) or "
        "CIDR-notated network (e.g. 1.2.3.024). Uses the same permissions as "
        "-whitebind. Can be specified multiple times." , ArgsManager::ALLOW_ANY, OptionsCategory::CONNECTION);
    g_wallet_init_interface.AddWalletOptions(argsman);
#if ENABLE_ZMQ
    argsman.AddArg("-zmqpubhashblock=<address>", "Enable publish hash block in <address>", ArgsManager::ALLOW_ANY, OptionsCategory::ZMQ);
    argsman.AddArg("-zmqpubhashtx=<address>", "Enable publish hash transaction in <address>", ArgsManager::ALLOW_ANY, OptionsCategory::ZMQ);
    argsman.AddArg("-zmqpubrawblock=<address>", "Enable publish raw block in <address>", ArgsManager::ALLOW_ANY, OptionsCategory::ZMQ);
    argsman.AddArg("-zmqpubrawtx=<address>", "Enable publish raw transaction in <address>", ArgsManager::ALLOW_ANY, OptionsCategory::ZMQ);
    argsman.AddArg("-zmqpubsequence=<address>", "Enable publish hash block and tx sequence in <address>", ArgsManager::ALLOW_ANY, OptionsCategory::ZMQ);
    argsman.AddArg("-zmqpubhashblockhwm=<n>", strprintf("Set publish hash block outbound message high water mark (default: %d)", CZMQAbstractNotifier::DEFAULT_ZMQ_SNDHWM), ArgsManager::ALLOW_ANY, OptionsCategory::ZMQ);
    argsman.AddArg("-zmqpubhashtxhwm=<n>", strprintf("Set publish hash transaction outbound message high water mark (default: %d)", CZMQAbstractNotifier::DEFAULT_ZMQ_SNDHWM), ArgsManager::ALLOW_ANY, OptionsCategory::ZMQ);
    argsman.AddArg("-zmqpubrawblockhwm=<n>", strprintf("Set publish raw block outbound message high water mark (default: %d)", CZMQAbstractNotifier::DEFAULT_ZMQ_SNDHWM), ArgsManager::ALLOW_ANY, OptionsCategory::ZMQ);
    argsman.AddArg("-zmqpubrawtxhwm=<n>", strprintf("Set publish raw transaction outbound message high water mark (default: %d)", CZMQAbstractNotifier::DEFAULT_ZMQ_SNDHWM), ArgsManager::ALLOW_ANY, OptionsCategory::ZMQ);
    argsman.AddArg("-zmqpubsequencehwm=<n>", strprintf("Set publish hash sequence message high water mark (default: %d)", CZMQAbstractNotifier::DEFAULT_ZMQ_SNDHWM), ArgsManager::ALLOW_ANY, OptionsCategory::ZMQ);
#else
    hidden_args.emplace_back("-zmqpubhashblock=<address>");
    hidden_args.emplace_back("-zmqpubhashtx=<address>");
    hidden_args.emplace_back("-zmqpubrawblock=<address>");
    hidden_args.emplace_back("-zmqpubrawtx=<address>");
    hidden_args.emplace_back("-zmqpubsequence=<n>");
    hidden_args.emplace_back("-zmqpubhashblockhwm=<n>");
    hidden_args.emplace_back("-zmqpubhashtxhwm=<n>");