If you click on "Prepare Network" before a "Prepare Host" completes, the hosts never load

[digimer]

So I opened three tabs and ran the "Prepare Host" for the three targets (two subnodes and a DR host) in parallel. The I clicked on "Prepare Host" and waited for them to show up. They never did, with the below loading screen displaying until I manually reloaded to page.

Reload;