- Once morph targets have been imported, inside the skeletal mesh I receive an indication that my materials need to be saved. I saved them and nothing seems to happen and as a result, whenever I hit the play button, my mesh disappears. I was able to fix this issue by going through each material individually, disconnecting the nodes, reconnecting and applying and saving all assets. I also had to make sure to move the slider back and forth with each morph target and hit save all for the changes to take effect on the highlighted material. So I had to manually go through this process with each material in order for the morph targets / materials to be saved correctly. I believe this is a bug so I wanted to let any developers be aware of it.