AWS DMS CDC replication task not migrating the data and showing "Unchanged-toast-datum" instead of real value in LOB columns

I am using AWS DMS in which I am migrating the data from Aurora Postgresql DB to Amazon S3. When I perform a full load operation I am getting whole data including LOB columns but when in case of CDC task I am getting the "Unchanged-Toast-Datum" in the LOB columns instead of the actual data. This is happening in case of "Update" records. In the S3 bucket I am getting empty column for that record but other columns have updated data.

Error in Cloudwatch Logs: [SOURCE_CAPTURE ]D: Detected an 'unchanged-toast-datum' column value in column 'BillingDetails'. This column will be ignored from the data record.