Can I edit landscape component size?

I’m using unreal 4.19.2 and having problems with editing landscape. Currently, I’m selecting the landscape, selecting the “change component size” tool and adjusting parameters. When I hit “apply” the engine stalls for a bit and then around 60-70 seconds it just crashes.

Am I doing something wrong or is landscape just very unstable?

An old post - but I’m having exactly the same problem in 2021!! :frowning:

Oh - using v4.25.4