Import Package broken

Unity Engine
,
1

When I try to import a .package file it loads an empty window. I’ve installed 2018.1.6f1 on Debian 9. Has anyone else seen this issue?

2

So, I’ve installed version 2017.4.6f1, it allowed me to import one .package file. Now it’s doing the same thing as 2014.1.6f1(empty window with the title “Import Unity Package”).