CDO

Hi, I have some 3D SCREAM data to work with and need to apply some CDO magic. However, CDO seems not to recognize the correct grid size and size of the vertical axis. The dimensions are included properly, missing though is the field with the vertical axis. The dimension is defined, but missing under variables:

dimensions:
time = UNLIMITED ; // (8 currently)
lev = 101 ;
ncol = 25165824 ;
variables:
double time(time) ;
time:units = "days since 2019-08-01 00:00:00" ;
time:long_name = "time" ;
time:calendar = "noleap" ;
float qc(time, ncol, lev) ;
qc:units = "kg/kg" ;
qc:long_name = "qc" ;
qc:_FillValue = 3.402824e+33f ;
qc:averaging_count_tracker = "avg_count_Scalar3D_ncol_lev" ;
float qi(time, ncol, lev) ;
qi:units = "kg/kg" ;
qi:long_name = "qi" ;
qi:_FillValue = 3.402824e+33f ;
qi:averaging_count_tracker = "avg_count_Scalar3D_ncol_lev" ;
float area(ncol) ;
area:units = "1^2" ;
area:long_name = "area" ;
area:_FillValue = 3.402824e+33f ;
float lat(ncol) ;
lat:units = "1" ;
lat:long_name = "lat" ;
lat:_FillValue = 3.402824e+33f ;
float lon(ncol) ;
lon:units = "1" ;
lon:long_name = "lon" ;
lon:_FillValue = 3.402824e+33f ;

I do have the correct grid, which was actually also working with other data, yet not this one. When looking in the data using CDO infon, it shows:

-1 :       Date     Time   Level Gridsize    Miss :     Minimum        Mean     Maximum : Parameter name
    1 : 2020-08-04 00:01:40       0 2541748224 111563922 :      0.0000  4.5663e-06   0.0036551 : qc             
    2 : 2020-08-04 00:01:40       0 2541748224 111563922 :      0.0000  8.7254e-06    0.019309 : qi    
    3 : 2020-08-04 00:01:40       0 25165824           0 :  4.1613e-07  4.9934e-07  5.8827e-07 : area          
    4 : 2020-08-04 00:01:40       0 25165824           0 :     -89.969      0.0000      89.969 : lat            
    5 : 2020-08-04 00:01:40       0 25165824           0 :    0.021973      180.00      359.98 : lon

Not sure if the grid size is generally the 2D grid, or the 2d grid times the vertical axis, in this case 101. When executing cdo with setgrid and/or setzaxis and selvar,qc,qi : CDO complains that no grid with the horizontal or vertical axis are fiund:

cdo(1) setzaxis (Warning): No zaxis with 101 levels found!
cdo setgrid (Warning): No horizontal grid with 25165824 cells found!

Any ideas on how to fix this?

Thanks and Cheers, Niklas