The shape of Dynare figures

Dear all, may anyone can help with my DSGE model :frowning:
The figures to my models look very weird. Most of them have obvious angels like this
and this
The responses to some of the shocks are fine, i.e. the shape is beautiful and smooth
May anyone can tell me how to make my figures smooth ?
Does the problem come from my equations ? Or the linear equation is wrong ?
Please~ I will appreciate it you can help
Thank you very much
socialhousing.txt (7.5 KB)

Please see