Some Openbox icons disappear after the first update

Hi, not really an issue but wonder if it can be something fixable or happening only to me.
I’ve experienced both in 1.3.2 and in 1.4 that after the first package update, some of the Openbox menu items icon disappear. Specially in Settings and System menues. Does it happen to others of you? My icons setting choice is Faenza Ambiance.
Thank you

Today I made a fresh install on my 1TB HD.
After the first update all is fine. No icons disappeared,