MakeOTF problem (Version 1.4 (built 1301142150) – MacOsX 10.8.3)

Dear Robofont forum,
During the exportation of an OTF file, I received this error in the output panel:

makeotf [Note] Converting source font '/font.otf' to temporary Unix Type1 font file '/font.otf.tmp'.
makeotf [Error] Failed to convert input font '/font.otf' to temp file '/font.otf.tmp' with tx.
   TX report : tx: --- /font.otf
tx: (cfr) bad INDEX offset array

Can anyone explain me what does bad INDEX offset array means?
Thanks.

Best,
Roberto

If I try to export a single glyph, it works.
May it be a problem with the number of contours?

Hi Frederik,
this is the repository of the project:
https://github.com/roberto-arista/titillium_nebulae

The font is the Thin in the ufo folder.

Here, if you prefer, there's the direct link:
https://dl.dropbox.com/u/5730475/TitilliumDisplay-NebulaeThin.ufo.zip

I use the embedded version of FDK.

thanks!

frederik

He Roberto

Can you send the UFO? or make an example with the same traceback.

Do you use a local version of FDK or the embedded one? tx is part of FDK

thanks