Environment does not load but health status says Ok

It looks like a networking related issue in your configuration. I would try the following troubleshooting steps if you haven't already:

• Security Groups: Double-check the rules in your security group configuration. The security group attached to your Elastic Beanstalk environment should allow incoming traffic on the ports that your application is using. Typically, this would be port 80 for HTTP and port 443 for HTTPS. Also, make sure that the sources of the inbound rules are correctly set. If you're testing from your own machine, you can temporarily add your IP address to the inbound rule to ensure connectivity.
• VPC and Subnets: Check if your Elastic Beanstalk environment is in a VPC, and ensure that it's in the right subnets. Your subnets should have a route to an Internet Gateway if your application needs to be reachable from the public internet.
• Elastic Load Balancer (ELB): Verify your load balancer's configuration. If your application communicates on a specific port, your load balancer should be listening on that port. Moreover, your health check settings should correctly point to an endpoint that returns HTTP 200. If the health check fails, your instances would not receive any traffic.
• Network Access Control Lists (NACLs): While less common, NACLs can also block traffic. These act as a firewall for controlling traffic in and out of one or more subnets. Check if there are any NACLs associated with your VPC that might be blocking traffic. If you try that and it still doesn't work, please provide more details and I will try to recommend some other steps.