While most .obj files seem to import without issues into 2.5, the MakeHuman proxymesh ones found here (http://www.makehumancommunity.org/proxies.html) cause my copy of Silo to hang indefinitely on import.
OBJ import bugged?
Cinnsealach
#2
I downloaded one of the files and had the same issue. Silo 2.3 hangs also.
I loaded the obj into Blender and exported a new obj file and that loads into Silo fine.
Ascania
#3
I experimented a bit. With one file adding a comment with the number of vertices allowed it to load, in another it did not make a difference.