Comparing forecast and conditional forecast

I’d like to compare results of conditional forecast (product of command conditional_forecast) and forecast (product of option forecast in command estimation) for some unobserved endogenous variables, but these two forecasts don’t begin with the same value. What would be the reason of this?
(The forecasts for observed variables begin with the last observed value. I use Dynare 4.3.1.)

Thanks for an advice:)