Looks like this issue still exists in 1.8. I am able to see my security groups just fine and even add the proper groups to each compute profile.

When creating a new host and selecting the compute profile, the security groups are blank. I have to change the subnet selection forward/back to get the rules to show up at all. So there are two issues that may be related.

1. Groups not propagated to new host after profile selection during launch.

To reproduce, just make a compute profile with your selection and then try launching a new host with that profile.

2. When the results from #1 are not returned, you get a blank set of rules for that subnet until you toggle subnets.