I think that a 'recursive' setting at the portal level is causing the problem. See the security discussion in these two posts:
thank you very much Peter,
that was it.
I was having some extra difficulties as I couldn't find some buttons mentioned
on the docs: some labels in the italian version are missing; I see you have a translator already but if needed I could help too.
Many messages have an english key but are translated only in german;
as I don't know german if you finish english I'm willing to help with italian.
Also many messages which are translated have very english-feeling wordkings.
(referring to 2.7.0CR1)