Update known-issues.md

Issue with the 4c release

Author: JuanitaBaptiste

memdocs/autopilot/known-issues.md

@@ -28,7 +28,11 @@ This article describes known issues that can often be resolved by configuration
 
 ## Known issues
 
-### `DefaultuserX` profile not deleted
+### Autopilot profile not being applied when assigned 
+
+In Windows 10 April (KB5011831) release, there is an issue where the Autopilot profile may fail to apply to the device. As a result, any settings made in the profile may not be configured for the user such as device renaming. To resolve this issue, the May (KB5015020) cumulative update needs to be applied to the device.
+
+### DefaultuserX profile not deleted
 
 When you use the [EnableWebSignIn CSP](/windows/client-management/mdm/policy-csp-authentication#authentication-enablewebsignin), the `defaultuserX` profile may not be deleted. This CSP isn't currently supported. It's in preview mode only and not recommended for production purposes at this time.