Instant crash when opening Landscape toolbox If another hidden sublevel has a Landscape in it

When I try to create a Landscape in a sub-level AND there is a landscape in another hidden sub-level the editor instantly crashes when I try to open the Landscape toolbox.

Video

Hello AlphaSierra216,

This is a known issue and has been reported and fixed for an upcoming full engine release.

UE-37954

Let me know if you have further questions or need additional assistance.

Thank you,

Andrew Hurley