Render breaks after several map loads

[Dreikblack]

Can't reproduce it yet in simple example since it tends to happen with big maps with many entities.

In my game it can be reproduced by:

1. New game or Choose Map ->Easy Map -> Ok

2. F5 to quick save

3. After a second (have a delay to prevent other issue with double click) press F9 for quick load.

4, Do Quick Load 5+ times and eventually it either HUD became invisible fully or partly (buttons still can be pressed so it's not sudden UI->SetHidden anywhere) or game stuckes on Loading screen, but in fact game is just not being rendered - "Error: Invalid value" in console after every world->Render()

Another way is starting new game, returning to main menu and starting again.

Also beside HUD also anything transparent seems to be non rendered - shotgun cones, fog cubes, blood decals. And for some reason gibs invisible too (they only thing with a physics tho).