*Break* segmentation violation and failed to access leaf in array from tree contains CORSIKA data

Try to use source code files generated by (see the new “cor.C” for instructions on how to use them):
root -b -l -q DAT000002.root -e 'cor->MakeClass();'

UPDATE: I’m afraid you need to talk to your colleagues who are familiar with your data. @pcanal The source code generated by the TTree::MakeClass method (and other similar methods) will be broken/misbehaving for all variable size arrays in the non-split “Particle” branch.