Like all Windows software, DSC records errors and events in logs that can be viewed from the Event Viewer. Examining these logs can help you understand why a particular operation failed, and how to prevent failure in the future.
In Event Viewer, DSC events are in: Applications and Services Logs/Microsoft/Windows/Desired State Configuration
Maybe you can also try using the Get-DscConfigurationStatus cmdlet to get information about configuration status from a target node and see if are some issues there. You can dig into the object to discover details about the configuration run such as:
-All of the resources that failed
-Any resource that requested a reboot
-Meta-Configuration settings at the time of configuration run.
Troubleshooting DSC
https://learn.microsoft.com/en-us/powershell/dsc/troubleshooting/troubleshooting?view=dsc-1.1
Hope this resolves your Query!!
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