ok so odd one. software update-based installation reports success on the site server, but the devices never show a client:

Log viewer - C:\Windows\ccmsetup\Logs\ccmsetup.log
Running as user "SYSTEM"
Detected 120318 MB free disk space on system drive.
Checking Write Filter Status.
Downloading file client.msi
Download complete.
Running installation package
Package: C:\WINDOWS\ccmsetup\client.msi
Log: C:\WINDOWS\ccmsetup\Logs\client.msi.log
MSI: Setup was unable to compile the file DiscoveryStatus.mof.
MSI: The error code is 80041002
Installation failed with error code 1603
A Fallback Status Point has not been specified.
on one machine i found ccmsetup.log ending with 0x87d00227. is there a checklist Im missing?
im not even sure whether teh push really happened or whether the device just ignored it. id love some pointers on which logs to correlate between the site server and the clinet, and in what order. seriously need help here 😭
