[phenixbb] Trouble with occupancy refinement

Hello, I've built several glucose molecules from my cryosolution into regions of weaker electron density. Attempting to refine the occupancies of the corresponding atoms, I set the value of each to 0.25 in the pdb file. However, after running phenix.refine, most of the atoms still have occupancies of 1.00: 14 atoms with occ = 0.00 5 atoms with 0.00 < occ < 1.00 74 atoms with occ = 1.00 Is this unusual? Thank you! Best, Chris