Help Couenne

Hello, i have reduced the size of my problem, and i finally got an answer (not a right answer, but i know why its wrong, and i’m trying to fix that). But it only works with these values:

hsmin = 3;
hsmax = 23;
@variable(m, hsmin <= hs[i=1:Nt] <= hsmax, Int)

I understand if i reduce the value of hsmax, i’m reducing the search space of my problem, and could make it infeasible (but from my experience, it shouldnt be infeasible anyway). I tried increasing it, and it gave me an infeasible result too.

hsmax can only accept odd values here, i tried from 5, 7, ..., 25, 27, 29. And it only works if i use 23.

Any ideas what could be causing this?