Huge Terrain problem

I deleted the wrong terrain in the Hierarchy and exported the game. Now I can’t undo. Is it possible to get the terrain back (trees) ?
It’s mainly get back my tree because the terrain is flat.

I’m trying with the Terrains data from my project but they don’t seems to work.

I really hope someone can help me with that

It might be in the recycle bin, if you’re lucky. Or use a backup if available.

Though if you only deleted it in the hierarchy, it should still exist in your assets, have a search for terrain objects in the project panel, it should be there and intact.

Unity deletes to recycle bin, so it should be there.

…not for the objects from the hierachy…

And the terrain should be saved in the terrain data but when I use them on a new terrain, the terrain stays empty…

ok I found the solution, just needed to drag and drop the terrain data into the hierarchy not into a pre-existing terrain.