It is STRONGLY RECOMMENDED that you open a support incident. Bypassing a job for the aux copy is considered data loss as you will not be copying the job to tape.There could be an underlying issue here where the data could be corrupt or you are having a library problem.
If you do not care to get to the root cause nor care about the data being aux copied, you can bypass the job from being copied.
Here is the doc link from Books Online that discusses this.
In a nutshell, find the job you want to skip. It should list the job ID in the error such as in the example below....
Here you can see the job ID is .
Failed to Copy or verify Chunk  in media [CV_MAGNETIC], Storage Policy [FileSystems], Copy [1:Primary Disk], Host [media.net], Path [M:\CV_MAGNETIC\V_1904117], File Number , Backup Jobs . Data read from media appears to be corrupted. Data read from media appears to be corrupted.
Go to the storage policy and right click on the aux copy - view jobs. Under the Advanced tab select "Jobs that need to be copied" Find the job ID 15236, right click the job and say "Do NOt Copy"
Resume the Aux Copy.
If the job continues to fail on multiple job, open a new support incident for further investigation into the cause of the issue.
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