The model reach a new value of steady state

There is no unit root, and it is a temporary shock, but the IRFs of some variables in a model don´t return to the steady state, but that they reach a new value of steady state. I don’t know why.

Any help would be appreciated!
Thanks a millionsummer.mod|attachment (7.9 KB) summerindex.m (2.8 KB)

summer.mod (7.9 KB) summerindex.m (2.8 KB)

Which variable? I can only see a large persistence, but not a permanent effect.

Yes , you are right ,I am sorry, I just found that.