HDR Images I pack go missing in render I am using an HDR to light my world in a .blend file. It works fine normally, but when I pack it it mysteriously goes missing during render time. Why is this?

Here is a .blend file demonstrating it:
http://www.pasteall.org/blend/37691

Notice how you can unpack the HDR and it loads fine in the UV Editor, but rendering it's gone!
The problem was solved when I switched to the CPU renderer. I am guessing that OpenCL is at fault, because it happened during GPU rendering. More information here.

Looks like GPU OpenCL is lacking many features, so I recommend using CPU renderer for now.