@Xeroderma Hey! Sorry, I somehow missed your message. The best way to get a fast answer for support is to use the discord 
Load/save should work fine, maybe it’s due to some other issue in saving the file itself?
There are a few known issues with multiplayer, working on fixing those!
You need to make your character inherit from AVoxelCharacter instead of ACharacter
@GGUMINGUUU There are importers to import meshes, landscapes, 3D Coat assets & magic voxel assets.
Mesh import is far from perfect due to how voxels work. Texture data is lost on import.