Oh! So simple! Indeed, moved the gp = sc->c_objects; .. to the top and it's working fine! Thanks! On Tue, 16 Nov 2021 at 14:24, <bil at ccrma.stanford.edu> wrote: > > I think this can be fixed by moving the c_objects list > to the top of s7_free, so any C++ deallocators have > everything in s7 available to them. > >