Hi,
I have configured Self-updating CAU for 2 Nodes Windows 2012 FO Cluster . I use "Microsoft.HotfixPlugin" of using insatall hotfix at cluster nodes.
In my Lab, 3 Windows 2012 Servers - 1 AD & 2 are Cluster Nodes(W2016-N1 & W2016-N2). Shared folder at AD server (BLUEAD01 - 10.10.10.10) with "Full Permission" for Cluster Administrator (User Name : Cluadmin - both nodes are loginto Blue.Local\Cluadmin user) . I am suspecting the issue is related with WUSA & having some conflict with security patch with extension *.msu.
Please check attached snap. If you have any way out, please let me know.
-Suddhaman