I have in Blender 2.71 a strange problem with building a Minion …
I save a new blend file at important steps done.
Normal render works in file 3 … adding more in 4 and 5
Only the last added mesh renders (not cycles) but the parts of what is built in 3 is not rendered.
In 4 I must have switched on something what triggers not showing earlier created meshes.
WHERE could be the reason ?
Luckily I solved the problem by starting at 3 and linking from 5 … but to know WHY … I got this is worthwhile for me