SOLVED Update issue

[JayDawg71]

Hi there,
We rolled out August updates in several phases to our company but most are in an "unknown state" when I look in Monitoring.
Also, I'm trying to pull down September's patches and after Synchronizing Software Updates & filter on Required =>1 etc it is only showing about 4 updates which is clearly wrong.

I feel like the 2 issues are linked so was just wondering if anyone had any pointers or suggestions as to what's causing the issue & possible fixes please.
Many thanks

 

[JayDawg71]

As an update to this issue - I have run a report in SCCM - Trobleshooting 1 - Scan errors.
It shows my last deployed collection with multiple machines having Error Status ID = 11423 / Last Error Code -2146762481 which I can't seem to find much information on???