Uncaught TypeError: Cannot read property 'centralAtom' of undefined

[arthurchipdean]

I'm getting this error when trying to cartoon a subselection of the structure of the pdb. If I cartoon the entire structure it works, and what I'm doing works fine on thousands of other pdbs.

var main_chain = structure.atomSelect(function(atom) {
                        return atom._tempFactor == 10 && 
                                  atom.residue().chain().name() == options.chain;
                    });
viewer.cartoon('main-chain', main_chain, {
                        color: color.uniform('#d0ffbf')
                    });

I'm almost positive it's a problem with the pdb itself but it looks fine to me and it loads in pymol. Do you have any suggestions on what the problem may be or a way we could work around it?

Thanks for your help!