[Zope] Zope 2.13.26 and Product ExternalEditor

[Giampiero Benvenuti]

Hello everybody,

I would like very badly to upgrade to 2.13.26.
The installation of zope is working just fine.
The problem appear when I install the product ExternalEditor (ver. 2.0.2).
After installing it and restarting zope, all the icons of the products in ZMI disappear… I can see just the pencil icon of the External Editor. 

Do you  have a clue about it? I don’t no why.
Any way to fix it?

Thanks so much,

Giampiero