Same issue here… When i try to drop a tree into the scene the whole editor crashes “freeze”.
For all other assets it takes like a minute or two “for some reason” to drop them into the scene. No idea why this is happening.
I havent tested it yet but I have heard that the package just works well with the 4.8 (which you can download from github)
-otherwise post your crash log in here (documents-unreal projects - project name - saved - logs - the file which get generated after the crash)
-what happens when you just let the pc work? -> the tree could be pretty high poly, so it could take a while. Some people waited for around 30 mins to load everything.
i’ve managed to get the assets into my game without crashing.
What I am doing is double clicking on them before attempting to drop them into the scene. It still takes a while to load them into the mesh / uv editor, however I am finding that it won’t (so far) crash when compiling the asset for the first time in this way, rather than just dropping it straight away into the scene (for me at least)
after it’s done loading, I can place it in the world without issue.