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it also shows resource to be deleted in the plan

```Previewing update (single-region-test):
     Type                              Name                                    Plan       Info
     pulumi:pulumi:Stack               single-region-stack-single-region-test             3 errors
 -   ├─ aws:ec2:RouteTableAssociation  eu-west-1c-public                       delete     
 -   ├─ aws:ec2:Route                  eu-west-1c-public                       delete     
 -   └─ aws:ec2:Subnet                 eu-west-1c-public                       delete     
 
Diagnostics:
  pulumi:pulumi:Stack (single-region-stack-single-region-test):
    error: Target 'urn:pulumi:single-region-test::single-region-stack::dycloud:index:Ec2Vpc$dycloud:index:Subnet$aws:ec2/routeTableAssociation:RouteTableAssociation' could not be found in the stack.
    error: Target 'urn:pulumi:single-region-test::single-region-stack::dycloud:index:Ec2Vpc$dycloud:index:Subnet$aws:ec2/subnet:Subnet::eu-west-1c-public' could not be found in the stack.
    error: Target 'urn:pulumi:single-region-test::single-region-stack::dycloud:index:Ec2Vpc$dycloud:index:Subnet$aws:ec2/route:Route::eu-west-1c-public' could not be found in the stack.```

I've honestly never seen this error, very surprised the stack is in this state:

• can you share the code you're using to define your program
• can you shack the output of `pulumi stack export` (in a github gist if it's long)

it looks like this is caused if you run pulumi up targeting a custom resource and it has other resources nested under it

we can't publish state, sorry :slightly_smiling_face: