Hello Grace Yin,
Thanks for your posting on Q&A.
I found the following error messages to share with you:
I also noticed that the windows Server 2016 client are trying to install cumulative updates in 2018. It seems that the windows server 2016 client missed some essential updates. It is recommended to install the latest updates(CUs and SSUs).
Please help to confirm whether the latest cumulative updates(kb5001633) and service stack updates(kb5001078) are installed on the client or not. If not, please try to install the latest CUs and SSUs first.
Then we could try to check for updates manually to report on the client.
Hope the above will be helpful.
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