Security Group problem while creating a load balancer

Hello,

Have you selected the right VPC (in the ALB creation menu) where the security group has been created?

Please first check if you are on a same region ( where your ALB in created ) - You can confirm it from top right side of the AWS console. Then make sure you are at the same VPC where you created your load balancer. You can check your VPCs from left side menu on the console or you can search it by name .