Bug: kusion apply can't apply Kubernetes resources in some condition

[Yangyang96]

What happened?

I successfully applied the example project kawesome, which included a Terraform resource. However, after that when I modified my app configuration to add some Kubernetes resources and attempted to re-apply, I encountered the following issue. However, the reverse order did not produce the issue.

✔︎  Generating Spec in the Stack default...                                                                                                                                                       
 ✘  preview failed.
      Kind: ERROR, Code: INTERNAL, Message: preview failed.
      Kind: ERROR, Code: INTERNAL, Message: runtime error: invalid memory address or nil pointer dereference

What did you expect to happen?

My re-apply operation should work functionally.

How can we reproduce it (as minimally and precisely as possible)?

Apply a project with Terraform resources, and after that apply some Kubernetes resources under the same project.

Anything else we need to know?

No response

Kusion version

$ kusion version
# paste output here

OS version

# On Linux:
$ cat /etc/os-release
# paste output here
$ uname -a
# paste output here

# On Windows:
C:\> wmic os get Caption, Version, BuildNumber, OSArchitecture
# paste output here

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