Missing Updates in Bulletins

One of my managers asked me to look into this bulletin to make sure we've applied the patches to our endpoints:

https://technet.microsoft.com/en-us/library/securi...

The problem is there are several updates listed for that bulletin, but I only have one update associated to that bulletin in my Patch Remediation Center:

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Any ideas why that is? I'm also curious to hear how people are handling optional updates, but that may be for a separate post.