Sorry, I don't speak English very well and maybe I didn't explain myself clearly.
I cannot supply any report Id because the problem occurs when I try to modify my citation using word. I open "zotero edit citation", I select "classic view" and when I select "show editor", it appears the string that I have reported above. Not only, but when I select a periodical article and I insert it in word, zotero insert a dot at the end of the shorten title that should't be...
The problem is whit word - I suppose - not with zotero-plugin for firefox or zotero standalone. I have word 2010 professional, not starter edition. Yesterday the problem happened while I was using word and firefox, not word and standalone. But as soon as standalone was updated, the problem appeared with standalone too. So I think there is something wrong with the last update.
I didn't used "strange" font... only "times new roman" using the Pontifical Gregorian University output format.

Thank you very much for your help

And we also need to know what the item looks like in the right-hand pane in Zotero.

The Classic view is inserting the RTF version of the citation into the editor. The developers may peg the problem immediately, but I'll also take a look and see if I can work out where it's going wrong.

Hi.
On the same way of donale79.
Same citation style (Pontifical Gregorian University), same problem, but Standalone + Word2011 for Mac.
I checked the style (I made it) but it worked and works. In CSL no problem with comma or dot inside inverted commas. All ok (seems to me).

The problem is not only with the classical view.
Here citations from non-classical view (note: when no page numbers, dot inside inverted commas).
J.G. BOUGEROL, Introduction, 23.
G. EMERY, ««Theologia» and «dispensatio» : the centrality of the divine missions in St Thomas’s Trinitarian theology», 45-34.
G.M. REICHBERG, «La communication de la nature divine en Dieu selon Thomas d’Aquin.»
L.J. BOWMAN, «The Cosmic Exemplarism of Bonaventure.»

With classical view is the same:
P.W. ROSEMANN, Peter Lombard.
P.W. ROSEMANN, Peter Lombard, 223.
N. DEN BOK, «The Sentences,» 11.
N. DEN BOK, «The Sentences.»

So, the problem is only with journal citations.
And it is FOR ALL CSL styles. For example Chicago manual of style 16th (note):
Bougerol, Introduzione Generale, 23.
Emery, “‘Theologia’ and ‘Dispensatio’ : The Centrality of the Divine Missions in St Thomas’s Trinitarian Theology,” 45–34.
Reichberg, “La Communication de La Nature Divine En Dieu Selon Thomas d’Aquin.”
Bowman, “The Cosmic Exemplarism of Bonaventure.”
Rosemann, Peter Lombard.
Ibid., 223.
Bok, “The Sentences,” 11.
Bok, “The Sentences.”

Bye and thanks.
Paolo Brambilla

This maybe suggests that processors should not do punctuation-in-quote for some quote forms, or in some locales.

But both users are reporting the issue for https://github.com/citation-style-language/styles/blob/master/pontifical-gregorian-university.csl, which is set to "it-IT" and has even an explicit ``, so we should never have punctuation within quotes here, right?

Ah, good catch. But since those guillemets are coded as affixes on CSL variables, that still doesn't explain how the periods/commas are able to sneak in front.

The problem goes away by removing `quotes="false"` (e.g. on line 91 for the bibliography). (Zotero Standalone 4.0.27.6)

@paolinobra:

Meanwhile, the conditions for ibid in this style will always fail, because when "ibid" is true, "near-note" is false. The "near-note" test should be removed.

Also, you should test separately for "ibid-with-locator" and "ibid"; otherwise the "ibid" term will render nothing unless a page number is also given.

Thank you so much.

For the style specifications, I will see them comparing with the specifications of University. For now I can't remember why I chose that solution.

For processor's bug, I have decided to wait for the future version of Zotero (I can wait). Actual version has still the bug.