Restart the replicat once to confirm it’s not a transient I/O glitch:
ggsci> START REPLICAT rep01
If it abends immediately with the same RBA, the corruption is real. ogg-01184 expected 4 bytes but got 0 bytes in trail
start replicat <rep_name>
2025-03-23 10:15:32 ERROR OGG-01184 trail file ./dirdat/rt000001, expected 4 bytes but got 0 bytes in trail.