Why Union Models is not appear?

[Confederation_Major (3DBlenderEnthusiast)]

@OBCBeeDev If you are experiencing this problem concistently, you should convert your models to meshes (OBJ Files or FBX Files)

@DanTDM_Rocks999

How to Easily Convert Unions To Meshes
It is so easy that you can do it in just 2 steps.

1. Export the union
   
2. Create a MeshPart
   
3. Click on the folder icon next to MeshId and select your .obj file
   

Congratulations! You have now converted your union into a mesh. This is incredibly useful, especially if you do not know how to use third-party modelling apps