Terraform-provider-aws: Issue with Terraform Updating Security Group

[hashibot]

_This issue was originally opened by @thegranddesign as hashicorp/terraform#5902. It was migrated here as part of the provider split. The original body of the issue is below._

---

    Terraform Version: 0.6.15
    Resource ID: aws_security_group_rule.allow_ssh_in
    Mismatch reason: diff: Destroy; old: false, new: true
    Diff One (usually from plan): *terraform.InstanceDiff{Attributes:map[string]*terraform.ResourceAttrDiff{"cidr_blocks.#":*terraform.ResourceAttrDiff{Old:"1", New:"", NewComputed:true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Type:0x0}}, Destroy:false, DestroyTainted:false}
    Diff Two (usually from apply): *terraform.InstanceDiff{Attributes:map[string]*terraform.ResourceAttrDiff{"cidr_blocks.0":*terraform.ResourceAttrDiff{Old:"10.0.0.136/32", New:"10.0.0.131/32", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:true, Type:0x0}, "to_port":*terraform.ResourceAttrDiff{Old:"512", New:"512", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Type:0x0}, "security_group_id":*terraform.ResourceAttrDiff{Old:"sg-2447355b", New:"sg-2447355b", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Type:0x0}, "from_port":*terraform.ResourceAttrDiff{Old:"512", New:"512", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Type:0x0}, "cidr_blocks.#":*terraform.ResourceAttrDiff{Old:"1", New:"1", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Type:0x0}, "type":*terraform.ResourceAttrDiff{Old:"ingress", New:"ingress", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Type:0x0}, "protocol":*terraform.ResourceAttrDiff{Old:"tcp", New:"tcp", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Type:0x0}, "source_security_group_id":*terraform.ResourceAttrDiff{Old:"", New:"", NewComputed:true, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Type:0x0}, "self":*terraform.ResourceAttrDiff{Old:"false", New:"0", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:false, Type:0x0}}, Destroy:true, DestroyTainted:false}

[nmarchini]

This issue still exists and is preventing me from destroying an RDS database and the subnets as per this issue that is closed

https://github.com/hashicorp/terraform/issues/5901

Is there any update on when this will be resolved?

[ntman4real]

has this even been resolved? I face the same issue.

tf v.0.11.1

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[teranos]

Also getting the 'already exists' error when updating in place.
Does anyone have a workaround?