[Solved] Help with T3 to T4 conversion

there is a couple of things i'm going to cover with this object
first the transparency problem is due to you placing the mesh on the "phongalpha" while it should be on "phong"

you can fix that by going to blender and changing the main mesh cut number to "0"

secondly the original mesh's "dropshdow" was also imported from the sims 3 and you placed it at cut "0" thus when you place the object in-game you see that white plate under the coffeemaker,to fix that you need to either change the cut number to "2" or resize the original "dropshodw" of the cloned object

you also need to place a mesh for "phongalpha",i usually place a small ball inside the main mesh in case there is not enough mesh parts for the object, in this case its cut should be "1"

thirdly you need to lower the mesh poly for the lower lods , here's a tutorial sims4studio.com/thread/1031/reduce-mesh-poly-count

lastly i don't know what you did but your "shadow lod 1" is a book, which it shouldn't be considering you cloned it from a coffeemaker, so i would advise into making it the same of the coffeemaker mesh with lower poly.

that's all