Hi @sam nick ,
1.Could you please share more error information by clicking View History in Job?
2.Please check if you set Package.MaxConcurrentExecutables Property as -1 in the properties of ssis package.
If the answer is helpful, please click "Accept Answer" and upvote it.
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.