Copy this text and save it with an obj extension, then import it in PP2012 with all options unchecked and then export it again as obj. Look at the exported obj and see if there are more than one normals in a single line.

 

v -0.05 0.10 -0.05
v -0.05 0.10  0.05
v  0.05 0.07 0.05
v -0.05 0.07 0.05
v  0.05 0.10 -0.05
v  0.05 0.10  0.05
v  0.05 0.07 0.05
vt 0 0.00
vt 1 0.00
vt 1 1.00
vt 0 1.00
vt 1 0.87
vt 0 0.75
vt 1 0.75
f 2/1 6/2 5/3 1/4
f 7/5 4/6 3/7

Stupidity also evolves!