Number of objects are 0 in validation set on precompute

[aminullah6264]

./launchers/det_precompute.sh config/config.py train Precomputation for the training/validation split start reading training data training split finished precomputing06s, eta:0.70s, total_objs:[11670, 2156, 706], usable_objs:[11670, 2105, 700]] start reading validation data validation split finished precomputing01s, eta:0.90s, total_objs:[0, 0, 0], usable_objs:[0, 0, 0]] Preprocessing finished

What could be possibly wrong here?