histval+stoch_simul
Contrary to what is explained in the documentation, the stochastic simulations are systematically initialized at the deterministic steady state. The histval block does not affect the way the simulations are initialized, and, worse, the preprocessor crashes if option periods is used (with an error message).
The error message should be removed and the preprocessor should define a flag (options_.histval=1) whenever the block histval is used.