Load Times Bug

Why is the hideout unloaded when you enter a map?
Why is the main map unloaded when you enter a sub area (e.g. mirage / vaal side area)?
If the hideout is unloaded when you enter a map why doesn't restart in map exist rather thnan restart at hideout.

I bought a beefy machine with next gen SSD motherboard and multiple SSDs and still the load times are nuts.