PDB seems not correspond with the model1 specification

hi all
many thanks for your helpful work and structure prediction.

I m contact you because when l download the PDB of model1 and open it with chimera, but there are some differences; for example the strands predicted (and as l expected ) should be 11, in the small generated 3d model are 11 but in the pdb only 9.

do you think is a chimera problem or something related to the pdb file?

thanks again
federica