Microsoft Office 365 x86 patch failure on Windows 10...

I have a client with ten identically configured and installed HP DeskPro PCs, running Office 365. Patching of Office has been running fine for months. However, recently, I have had two PCs starting to throw an automated patch error:

Patch ID	Bulletin ID	Patch Description	Vendor	Patch Type	Severity	Remarks	Deployed Time	Release Date
24975	MS18-O365B	Update for Office 365 Business Edition Monthly Channel Version 1806 (Build 10228.20104)	Microsoft	Security Update	Critical	This version of %1 is not compatible with the version of Windows youre running. Check your computers system information and then contact the software publisher.	Jul 28, 2018 12:50 AM	Jul 10, 2018