GEMs - GEMred (Pre-rendered textures, PRT) и другое

This is my mistake that I have to correct in the next version, because I have to re-import all the meshes of the trees by expanding the trunk. It's something I keep in mind. You're right, the mesh ID is the same, that folder will only delete the textures. You will have to look at each file (model) and the Geometry number, look for it in the bin/geometries folder and delete them all.