Have you perhaps quoted the procedure for a manual gearbox?
The engine/CVT gearbox must be warmed up, and you check the dipstick I think about 1 minute after switching off the engine. Exact procedure described in both Honda and Haynes service manuals.
It is not possible to remove all the old CVT fluid.
I find my CVT (for iDSi engine) requires about 3.15 litres from 4L can of Honda CVT oil (I've replaced it 3 times to date). If you wish to avoid overfilling, start with 3 litres, then 'top it up'.