Importing from rhino to UE4?

Hi im currently working on importing 3d models from rhino into unreal engine. just the beginning of learning UE4 and i already cant get it to work. while i can import the .obj or .fbx assets, once i drag them to the level editor, only the object arrows seem to appear. in the modes panel the object still appears in the recently placed tab so it seems the object is in the scene however its invisible. this happens whether ive exported the rhino model as fbx or obj from (rhino->UE4) or (rhino–>3dsmax–>UE4) or (rhino–>Skp–>UE4). pls see uploaded screenshot. the asset highlighted is the object i placed in the level editor which seems to be in correct scale/size. no problem when i drag a basic sphere into the scene. dont mind any of the other furniture in the scene as those are just from the project template. thanks hope someone can help!

247013-import-print-screen-problem.jpg

update

so the problem was just that the model is actually very very tiny. although it says the correct model size when i highlight the asset, but for some reason the model is significantly tinier than the other models in the scene. i tried scaling it .001 to 1000000 and i still can find the right scaling to fit the right size. i exported it from rhino (Centimeter units) to fbx so it should be okay an no need to scale but im still running into this problem every time. has anyone encountered this problem?