StreamValidationTest NPE in CI

[derektriley]

Background

https://github.com/hiero-ledger/hiero-consensus-node/actions/runs/21688393925/job/62542997904
https://github.com/hiero-ledger/hiero-consensus-node/actions/runs/21697935113/job/62572765190
https://github.com/hiero-ledger/hiero-consensus-node/actions/runs/21728461808/job/62702533377

 com.hedera.services.bdd.suites.validation.StreamValidationTest > streamsAreValid() ✘ as written (18.5s)

    java.lang.AssertionError: Block stream validation failed:
      - null

Acceptance Criteria

• Investigate the above failure and implement a fix

Dependencies

No response

Definition of Ready (DoR) Checklist

• Clear acceptance criteria
• Clear and detailed description
• Dependencies identified
• Links to documentation
• Should be completable in 2-3 Days
• Initial draft of Low-level design document
• At least high level test plan
• Groomed/Estimated

Definition of Done (DoD) Checklist

• Acceptance Criteria complete
• No Codacy issues greater than minor (in new code)
• JavaDocs updated/created
• Code commented
• Unit tests created/updated
• 80% test code coverage (in new code)
• Happy Path and major negative cases in HAPI tests as applicable