The CDC_REC_RBTX record

Indicates that the transaction has been rolled back.

The header specific to the CDC_REC_RBTX record follows the common header. No data follows the headers; the payload size in the common header is 0.
Table 1. Format of the CDC_REC_RBTX record
Section Size Description
Sequence number 8 bytes The sequence number associated with the ROLLBACK operation.
Transaction ID 4 bytes The transaction ID.