LiT crashes after LND has changed wallet password

If you change the wallet password in LND then LiT will display the error oops, that password is incorrect when trying to log in with a password and then the LiT daemon will crash.

It doesn’t seem to be any sort of issue with password authentication since the config has not changed and the same password is being entered. It seems like something else errors and is swallowed and this password error is what’s returned.

I’m not sure if this is a bug in LiT or LND but either way it would be great if the error could be handled in LiT to make it more clear what’s going on.

Once in this state even if you completely uninstall LiT and reinstall it, nuking all data directories, the issue persists. However if you reinstall LND and nuke it’s data directories and then create a new wallet, then the issue is resolved.

So it seems like changing the LND password is putting LND in a strange state that LND itself can still run in but LiT errors out.

Attached LiT logs below:

[INF] LITD: Dialing lnd gRPC server at 10.21.21.9:10009
[INF] LITD: Listening for http_tls on: 127.0.0.1:8443
[INF] LITD: Listening for http on: [::]:3004
----------------------------------------------------------
 Lightning Terminal (LiT) by Lightning Labs               
                                                          
 Operating mode      remote                                   
 Node status         online                                   
 Alias               02d561a482b9ddd1b492                                   
 Version             0.11.1-beta commit=v0.11.1-beta                                   
 Web interface       https://127.0.0.1:8443, http://localhost:3004                                   
----------------------------------------------------------
[INF] LNDC: Creating lnd connection to 10.21.21.9:10009
[INF] LNDC: Connected to lnd
[INF] LNDC: lnd version: v0.11.1-beta, build tags 'autopilotrpc,signrpc,walletrpc,chainrpc,invoicesrpc,watchtowerrpc'
[INF] LNDC: Using network mainnet
[INF] LNDC: Waiting for lnd to be fully synced to its chain backend, this might take a while
[INF] LNDC: lnd is now fully synced to its chain backend
[INF] LOOPD: Swap server address: swap.lightning.today:11010
[INF] STORE: Checking for schema update: latest_version=4, db_version=4
[INF] LLMD: Version: 0.3.4-alpha commit=
[INF] LOOPD: Starting liquidity manager
[INF] LOOPD: Waiting for updates
[INF] LOOPD: Starting swap client
[INF] LOOP: Connected to lnd node '02d561a482b9ddd1b492' with pubkey 02d561a482b9ddd1b492f208ab72275b73eb57f7f9e9fd6b76521f3e0d524b0f23 (version v0.11.1-beta, build tags 'autopilotrpc,signrpc,walletrpc,chainrpc,invoicesrpc,watchtowerrpc')
[INF] LOOP: Wait for first block ntfn
[ERR] LOOP: Swap client terminating: rpc error: code = Unknown desc = verification failed: signature mismatch after caveat verification
[INF] LOOP: Swap client terminated
[INF] LOOPD: Swap client stopped
[ERR] LOOPD: Runtime error in daemon, shutting down: rpc error: code = Unknown desc = verification failed: signature mismatch after caveat verification
[INF] LOOPD: Stopping gRPC server
[INF] LOOPD: Stopping REST server
[WRN] GRPC: grpc: addrConn.createTransport failed to connect to {swap.lightning.today:11010  <nil> 0 <nil>}. Err: connection error: desc = "transport: Error while dialing dial tcp 52.25.40.106:11010: operation was canceled". Reconnecting...
[INF] LOOPD: Liquidity manager stopped
[INF] LOOPD: Daemon exited
[INF] LLMD: Auction server address: pool.lightning.finance:12010
[INF] CLDB: Checking for schema update: latest_version=1, db_version=1
[INF] RPCS: Starting trader server
[INF] RPCS: Connected to lnd node 02d561a482b9ddd1b492 with pubkey 02d561a482b9ddd1b492f208ab72275b73eb57f7f9e9fd6b76521f3e0d524b0f23
[INF] AUCT: Shutting down auctioneer client
[ERR] LITD: Could not start subservers: rpc error: code = Canceled desc = grpc: the client connection is closing
[ERR] LITD: Error stopping loop: rpc error: code = Unknown desc = verification failed: signature mismatch after caveat verification
[ERR] LNDC: Error closing client connection: rpc error: code = Canceled desc = grpc: the client connection is closing
[INF] SGNL: Received shutdown request.
[INF] SGNL: Shutting down...
[INF] SGNL: Gracefully shutting down.
[WRN] GRPC: grpc: addrConn.createTransport failed to connect to {pool.lightning.finance:12010  <nil> 0 <nil>}. Err: connection error: desc = "transport: authentication handshake failed: context canceled". Reconnecting...
[ERR] LITD: Error shutting down: rpc error: code = Unknown desc = verification failed: signature mismatch after caveat verification
rpc error: code = Canceled desc = grpc: the client connection is closing

You can reproduce this with Umbrel by:

• Setting up Umbrel
• Installing LiT
• Opening the LiT app and logging in fine
• Change Umbrel password (which also changes the LND password)
• Log back in to Umbrel
• Open the LiT app and logging in will fail
• LiT server will soon crash
• You should see the logs above at http://umbrel.local/logs

Nuking the LND data directory and creating a new wallet solves the issue.

A few Umbrel users have run into this and as far as we’re aware there’s no easy fix apart from us walking them through nuking their LND wallet and recreating it via CLI. Any help resolving this issue would be hugely appreciated!

[lukechilds]

Perfect! Thanks @guggero we’ll wait for that.

[guggero]

It looks like there is only one major issue around the payment_addr field. But once that gets resolved, I think the final release could happen soon. So maybe something around 2 weeks?