[4.8 Preview] Landscape foliage tool crashes when deleting foliage actors

I have added a bunch of foliage types to the painter, then later deleted a few of them from the content browser. When returning to the foliage tool, the items are still listed in the foliage type window, but any click in the window causes a crash.

Hi Macw0lf,

I was able to reproduce this and have entered a bug report, UE-15371, to be assessed by the development staff.