I had just downloaded a mannequin from online, all of the assets being .uassets and .umaps, but when I try to drop it into my content folder, I get a million error reports.
When I try using windows explorer to drop it into the UE4 content folder, nothing happens.
It says stuff like “Unknown file extension ‘.umap’” or '.uasset."
What’s going on? Why is UE4 not able to import its own file type?