Provider crashes while deleting transit gateway connections

[l2fprod]

Terraform Version

$ terraform version
Terraform v0.13.4
+ provider registry.terraform.io/ibm-cloud/ibm v1.13.0

68f842070ca9:~/mnt/home# uname -a
Linux 68f842070ca9 4.19.76-linuxkit #1 SMP Tue May 26 11:42:35 UTC 2020 x86_64 GNU/Linux
68f842070ca9:~/mnt/home# cat /etc/os-release
NAME="Alpine Linux"
ID=alpine
VERSION_ID=3.12.0
PRETTY_NAME="Alpine Linux v3.12"
HOME_URL="https://alpinelinux.org/"
BUG_REPORT_URL="https://bugs.alpinelinux.org/"
68f842070ca9:~/mnt/home#

Same behavior on mac OS 10.15.6

Affected Resource(s)

• ibm_tg_gateway
• ibm_tg_connection

Terraform Configuration Files

terraform {
  required_version = ">= 0.13.2"

  required_providers {
    ibm = {
      source = "IBM-Cloud/ibm"
      version = ">= 1.11.2"
    }
  }
}

variable ibmcloud_api_key {}
variable region {}
variable basename { default = "tg-delete" }
variable resource_group_name { default="Default" }
variable tags { default = [ "terraform" ] }

provider "ibm" {
  ibmcloud_api_key = var.ibmcloud_api_key
  region           = var.region
  generation       = 2
  ibmcloud_timeout = 900
}

data ibm_resource_group group {
  name = var.resource_group_name
}

locals {
  vpcnames = [
    "vpca",
    "vpcb",
    "vpcc",
    "vpcd"
  ]
}

resource ibm_is_vpc vpc {
  for_each = { for vpcname in local.vpcnames: vpcname => vpcname }
  name = "${var.basename}-${each.value}"
  resource_group = data.ibm_resource_group.group.id
}

resource ibm_tg_gateway transit_gateway {
  name           = "${var.basename}-tg"
  resource_group = data.ibm_resource_group.group.id
  location       = var.region
  global         = true
  tags           = var.tags
}

resource ibm_tg_connection vpc {
  for_each = { for vpcname in local.vpcnames: vpcname => vpcname }

  gateway      = ibm_tg_gateway.transit_gateway.id
  network_type = "vpc"
  name         = ibm_is_vpc.vpc[each.value].name
  network_id   = ibm_is_vpc.vpc[each.value].crn
}

Panic Output

https://gist.github.com/l2fprod/c80bba5b387bcebfae4f12d06d3298de

Expected Behavior

Destroy works with no crash

Actual Behavior

Crash during destroy

Steps to Reproduce

1. terraform apply
2. terraform destroy
   -> destroy crashes

[hkantare]

Fixed in latest release
https://github.com/IBM-Cloud/terraform-provider-ibm/releases/tag/v1.14.0