@DarthCoin
Do you think the “failed to fetch block hash problem” could have been solved with a rescan of the wallet UTXOs?
Like you described in the troubleshooting guide:
Step 1 - Enter using SSH into your node:
Step 2 - execute the following command to rescan wallet’s UTXOs:
sed -i “s/[Application Options]/[Application Options]\nreset-wallet-transactions=true/g;” ~/umbrel/lnd/lnd.conf && sudo reboot
Step 3 - Wait some time so LND can rescan all wallet’s UTXOs. If it solve the issue, run this to stop it from rescanning on a future restart:
sed -i “s/reset-wallet-transactions=true//g;” ~/umbrel/lnd/lnd.conf && sudo reboot
Wait, it can take quite a while.