EKS Nodes Not Joining Cluster: Any Solutions?

Hi everyone! I'm relatively new to using EKS and I'm encountering a problem with my cluster setup. I've created a VPC and am using Terraform to deploy EKS with the following configuration:

```hcl
module "eks" {
# source = "terraform-aws-modules/eks/aws"
# version = "20.37.1"
source = "git::https://github.com/terraform-aws-modules/terraform-aws-eks?ref=4c0a8fc4fd534fc039ca075b5bedd56c672d4c5f"
cluster_name = var.cluster_name
cluster_version = "1.33"
cluster_endpoint_public_access = true
enable_cluster_creator_admin_permissions = true
vpc_id = var.vpc_id
subnet_ids = var.subnet_ids
eks_managed_node_group_defaults = {
ami_type = "AL2023_x86_64_STANDARD"
}
eks_managed_node_groups = {
one = {
name = "node-group-1"
instance_types = ["t3.large"]
ami_type = "AL2023_x86_64_STANDARD"
min_size = 2
max_size = 3
desired_size = 2
iam_role_additional_policies = {
AmazonEBSCSIDriverPolicy = "arn:aws:iam::aws:policy/service-role/AmazonEBSCSIDriverPolicy"
}
}
}
tags = {
Terraform = "true"
Environment = var.env
Name = "eks-${var.cluster_name}"
Type = "EKS"
}
}
```

My VPC is set up, and so is my EKS cluster. However, the node group is stuck in the 'Creating' status and eventually fails with the following error:

```
Error: waiting for EKS Node Group (tgs-horsprod:node-group-1-20250709193647100100000002) create: unexpected state 'CREATE_FAILED', wanted target 'ACTIVE'. last error: i-0a1712f6ae998a30f, i-0fe4c2c2b384b448d: NodeCreationFailure: Instances failed to join the kubernetes cluster
```

I have two EC2 workers created, but they cannot join my EKS. Everything is set to private subnets. I checked the Security Groups, IAM roles, and policies, but I'm still stuck. Does anyone have any ideas or suggestions on how to resolve this? Thanks in advance!