Inventor Fusion to Plant 3D units issue

[JT_Entech]

I have drawn a part in Inventor Fusion in inches and saved it as a .DWG file. However whenever I open it in Plant 3D, the part distorts and becomes huge. Plant seems to think that my drawing was in decimeters and is "converting" it to inches. In other words, my 8" drawing has become about 31". I have tried to type "units" into plant and changing that to inches, but that did nothing. I also made sure my project in Plant was initially set up in imperial units. I also tried to open the .DWG in Autocad with the same problem. The only other time I can get the correct dimentions in Plant is when I try to "Add Custom Part". However, this is not particularlly helpful for I am trying to add the part to my catalog via spec editor. When I have attempted to do this and then selected it in plant, the part becomes huge again. 

Any help would be greatly appreciated, thanks.