[Node Operator Question] op-node not syncing without --l1.trustrpc=true

[PierrickGT]

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Issue Description

I'm syncing my Optimism Node using the snap sync mode and my own Ethereum node with Nethermind as Execution client and Lighthouse as Consensus client as my L1 node for op-node.
I wasn't able to get op-node to sync without adding the --l1.trustrpc=true flag which seems odd since Nethermind supports eth_getProof.
https://docs.nethermind.io/interacting/json-rpc-ns/eth/#eth_getproof

My node is fully synced and I use it to run transactions without any problem.

Protocol Description

op-geth version: op-geth version 0.1.0-unstable-0402d543-20240222
op-node version: op-node version v0.0.0-c87a469d-1709078315

Network name: Optimism
ChainID: 10
L1 chain: Ethereum Mainnet

op-geth config:
ARGS='--ws --op-network=op-mainnet --ws.port=8546 --ws.addr=localhost --ws.origins="*" --http --http.port=8545 --http.addr=localhost --http.vhosts="*" --http.corsdomain="*" --authrpc.addr=localhost --authrpc.jwtsecret=/etc/ethereum/jwtsecret --authrpc.port=8551 --authrpc.vhosts="*" --datadir=/home/ethereum/.op-geth --verbosity=3 --rollup.disabletxpoolgossip=true --rollup.sequencerhttp=https://mainnet-sequencer.optimism.io --rollup.historicalrpc=https://mainnet.optimism.io --syncmode=snap'

op-node config:
ARGS="--l1=http://192.168.1.150 --l1.rpckind=nethermind --l1.beacon=http://192.168.1.150:5052 --l1.trustrpc=true --l2=http://localhost:8551 --network=op-mainnet --rpc.port=9545 --l2.jwt-secret=/etc/ethereum/jwtsecret --p2p.priv.path=/home/ethereum/.op-node/opnode_p2p_priv.txt --p2p.peerstore.path=/home/ethereum/.op-node/opnode_peerstore_db --p2p.discovery.path=/home/ethereum/.op-node/opnode_discovery_db --metrics.enabled --syncmode=execution-layer --rollup.load-protocol-versions=true --rollup.halt=major"

Node Logs

I'm seeing this warning in op-node but I'm not sure it is related to this issue:
Mar 19 18:59:28 ethereumonarm-orangepi5-plus-47e837727 op-node[2461]: t=2024-03-19T18:59:28+0000 lvl=warn msg="Derivation process temporary error" attempts=1 err="engine stage failed: temp: failed to fetch blobs: failed to get blob sidecars for L1BlockRef 0x8a7d9d44378f054bdfc72eebd3b3c602adddd46d89012e9eb7f5b49d10a51996:19463742: failed to fetch blob sidecars for slot 8663825 block 0x8a7d9d44378f054bdfc72eebd3b3c602adddd46d89012e9eb7f5b49d10a51996:19463742: failed request with status 404: {\"code\":404,\"message\":\"NOT_FOUND: beacon block at slot 8663825\",\"stacktraces\":[]}"

Additional Information

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