Symptom: Block passes VIP compliance. Chip fails system test with data corruption on same interface.
Compare VIP configuration: block vs chip (width, ID, address map).
Check if chip test uses same traffic as block test.
Add passive VIP monitor at chip boundary — does it flag errors?
Trace failing transaction through bridge/fabric not present in block test.
Check firmware init sequence — block test may skip this.
Closing bug as 'VIP issue' when integration differs.
VIP pass without system-level replay.
Block-level scoreboard key missing port/bridge ID.