starting and expected charges differ

After completing a SCF calculation, an NSCF (or bands) calculation fails with the message "starting and expected charges differ"

Coming from:

        at /home/paulatto/espresso/UtilXlib/error_handler.f90:77
#2  0x4ef6f2 in potinit_
        at /home/paulatto/espresso/PW/src/potinit.f90:177
#3  0x4a4fb2 in init_run_
        at /home/paulatto/espresso/PW/src/init_run.f90:115
#4  0x511f67 in run_pwscf_
        at /home/paulatto/espresso/PW/src/run_pwscf.f90:124
#5  0x4062e5 in pwscf
        at /home/paulatto/espresso/PW/src/pwscf.f90:105
#6  0x40601c in main
        at /home/paulatto/espresso/PW/src/pwscf.f90:40
#0  0x7f979f259b90 in ???

Starting charge is indeed 17.836... vs 17 electrons.

nscf.in pw.in V_ONCV_PZ-1.0.UPF C_ONCV_PZ-1.0.UPF