Change of Working Capital from a semi-annual to an annual model

Though I am pretty confident it can not be done, its worth asking.

I am annualizing a semi-annual model. Accounts paybel and Accaounts receivable reconcile (as in for example H12017 + H2 2017 are matching with the modelled total 2017). However, Change in Working Capital does not reconcile at all.

Has anyone done this exercise before and was able to find a way to reconcile it.

Thanks