Chances are the host is using info cached on the Auto Deploy server. You need to update the cache.
To check if the current host setup matches the cache run the following:
PowerCLI C:\> Test-DeployRuleSetCompliance <name of host>
If the host shows non-compliant you can run:
PowerCLI C:\> Apply-ESXImageProfile "Test" "<name of host>"
This should update the cache and allow the host to boot.
