Hi,
Thank you for posting in Microsoft Q&A forum.
These errors have different meanings, you can use CMTrace tool to help you and choose one machine to troubleshoot.
Here are some articles for your reference for software update troubleshooting:
Troubleshooting SCCM Part III ...Software Updates
Troubleshoot software update deployments in Configuration Manager
Troubleshoot software update management in Configuration Manager
Thanks for your time. Have a nice day!
Best regards,
Simon
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