Why is Unreal so painfully, awfully SLOW?! Also saving bug

Ok, I was learning how to paint on the landscape (which is a pain, like seriously, why can’t I just choose different materials to paint with?) and I wanted to save the material but leave the original which I was working on, because I was concerned with how the preview looked, so I saved as. This is where the fun begins. I’m looking at picture 1 for whole 10 minutes with none change, the “learn” icon is freezed too, the bar doesn’t move a pixel.

So now there’s what happens next. So I used “Save as”, to avoid loosing the original, right? Well you know what? Begone with the original, Unreal will swap it too! I got two broken materials, when I needed one good saved in case of it being wrong, like it obviously was.
Thanks Unreal Engine. The tutorials at the beginning made me feel like this is going to be easy to learn, but I see I can’t really move without getting my week flooded with many more tutorials of all kind

I understand learning a new system can be frustrating, however, there is a learning curve and figuring out the nuances can take time. I wouldn’t necessarily throw your hands up and say “it’s busted!” If you can break down small bites of activity and determine what it does and how it fits into what you want it to do, then post follow up questions here on the forums, I’m sure there’s an awful lot of us unreal aficionados that can help you out.

As far as your first question on painting, it’s called vertex painting in unreal.
Older video (first hit on youtube): UE4 Tutorial: Vertex Painting (AAA Games) - YouTube

Material compiling can take a while - between the complexity of the material, configurations, and a bit of magic all playing parts is compiling a material. I would google up or search here for material compiling for some help.

I’m not sure I understand the third.

Tutorials are really your friend. Unreal, blueprints, are an insanely cool and easy system to jump right into programming. I’m so happy I started learning this years ago as it has made my prototyping up to final release so so so so much easier. Coding base engines isn’t fun.

Have fun in your UE adventure!