Importing ERA files on Gnosis Chain fails on the Shapella block

[filoozom]

Describe the bug

I'm trying to import ERA files with a trusted checkpoint sync to rebuild an archive node from genesis. However, it fails with the following error on the Shapella block:

NTC 2025-09-19 11:58:37.520+00:00 Reindexing historical state lookup tables (you can interrupt this process at any time) restUrl=http://172.21.0.110:5052 syncTarget=21389312
INF 2025-09-19 11:58:39.504+00:00 Recreating state snapshot                  topics="chaindag" slot=10379776 startStateRoot=e8d45f9e startSlot=10379264
ERR 2025-09-19 11:58:39.671+00:00 Failed to apply block while building index topics="chaindag" state_bid=fa4d4bce:10379264 error="process_bls_to_execution_change: invalid withdrawal prefix"
NTC 2025-09-19 11:58:39.671+00:00 Done, your beacon node is ready to serve you! Don't forget to check that you're on the canonical chain by comparing the checkpoint root with other online sources. See https://nimbus.guide/trusted-node-sync.html for more information. checkpoint=454baecd:21389312 restUrl=https://beacon-api-archival.gnosis.gateway.fm syncTarget=21389312

To Reproduce

$ mkdir -p nimbus/era
$ cd nimbus/era
$ wget --no-parent  -A '*.era' -q --show-progress -nd -r -c https://gbc-era.gnosiscoredevs.io/
$ cd ../..
$ nimbus_beacon_node trustedNodeSync --trusted-node-url=https://beacon-api-archival.gnosis.gateway.fm --data-dir=$(pwd)/nimbus --reindex=true --network=gnosis --era-dir=$(pwd)/nimbus/era --state-id=21389312

Additional context

1. The last available ERA file is gnosis-02612-24eac76f.era, which is 2.5m+ slots old at this point, so the trusted node needs to be an archive node.
2. The slot in question: https://gnosis.beaconcha.in/slot/10379264