[PROD] Validator votes for incorrect head

[twoeths]

Describe the bug

May-11 05:36:27.033[]                ^[[34mdebug^[[39m: Signed attestation slot=3785280, index=56, head=0xc4d2ce80c7723b88d996303a7f37ba05050f7c775277818bc689e7e6724ec000, validatorIndex=270127

chain head of same slot comes right after that

May-11 05:36:27.379[]              ^[[36mverbose^[[39m: Found new chain head slot=3785280, head=0x73e7c00453bb8383a0104fd62bb0af1032c58edfef4fbe44f56dced48871de60, previouDuty=0x952fc43d681ed80ef2f4779a6c8e98a5f7ef2037406548885947b4add17d9d8b, currentDuty=0xc4d2ce80c7723b88d996303a7f37ba05050f7c775277818bc689e7e6724ec000

attestation was missed probably because its AttestationData is not the same to others

Expected behavior

Beacon node turns out to be very busy at that time, it reached beacon node 4s later

May-11 05:36:31.551[VMON]            ^[[34mdebug^[[39m: Local validator published unaggregated attestation validatorIndex=270127, slot=3785280, committeeIndex=56, subnet=56, sentPeers=25, delaySec=2.236999988555908

[twoeths]

The i/o lag only happened at that time - the below shows 4s delay between signing time and publishing time

May-11 05:36:27.033[]                ^[[34mdebug^[[39m: Signed attestation slot=3785280, index=56, head=0xc4d2ce80c7723b88d996303a7f37ba05050f7c775277818bc689e7e6724ec000, validatorIndex=270127
...
May-11 05:36:31.566[]                 ^[[32minfo^[[39m: Published attestations slot=3785280, count=3

right now it takes <0.1s to publish attestation

May-11 07:33:59.526[]                debug: Signed attestation slot=3785868, index=56, head=0x53634b7587e2404a3c7c573908b749d9bcec5b7320e763f44e5a2e8c2505cf98, validatorIndex=270103
May-11 07:33:59.589[]                 info: Published attestations slot=3785868, count=2
May-11 07:34:59.506[]                debug: Signed attestation slot=3785873, index=3, head=0x7e7b2c388b85fe46e2ea810687182fecfb14f8161f92166dc6a86b36653892bd, validatorIndex=270120
May-11 07:34:59.570[]                 info: Published attestations slot=3785873, count=1

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed in 15 days if no further activity occurs. Thank you for your contributions.