[=;185436]
Simple: My fault!
Because Epic is not responsible for the integrity of my assets. A corrupted asset can crash any software.
Cheers,
[/]
Epic is not responsible for integrity of assets. That is true. But epic is responsible for providing quality software. I’m telling you, that if software cannot properly handle importing a file (be it corrupted) then is a fault of a software. Even more, it says that software is poorly written with that regards. By properly I mean that if file cannot be imported for any reason the software reports it back to you, via dialog box for example. You close that dialog box, but software do not crash.
Imagine that tga file you got from one of your friends and you don’t know where and how to manually edit it. You try to import it and it crashes your UE4. Surely correct behavior is that UE4 reports in some way that the format of that file is invalid and do not crash? Won’t you agree on that with me?
[=;185436]
"I remember I also was very dissatisfied with Microsoft when they released DOS 6.0… Until then I was happy with 5.0 which was very stable.
With 6.2 they cured a lot of the problems, but still… "
[/]
And I will be the same. As soon as the instability will get fixed I will never say that the engine is unstable. 
Cheers