Unterschiedliche Glyphen für den denselben Buchstaben in einem Wort. Wie kann ich das abstellen?

Check the font in Fontforge (Ctrl+Shift+F)→Lookuptables→GSUB. It might be a positional substitution.

Überprüfe den Font in Fontforge (Ctrl+Shift+F)→Nachschlagetabellen→ GSUB. Kann eine Positionssubstitution sein.

Okay, here is the example file. You find the Problem on page 4 in the 3rd and 4th line.
Sorry, it took some time, but I could not upload a zip here.

Beispieldatei

Now I found out, that this only appears, when the “a” is followed by a footnote!
If I separate the word “Arriaga” from the footnote number with a space, the “a” is still closed.
But when I write another character after the space, then the closed “a” changes to an open “a”.

If you use Adobe fonts, any InDesign subscriber will have access to the same fonts. If not, just package the file and post a link.

I think it has to do with the OpenType Functions (Features). The last option in this menue “german: Formatsätze” gives a lot of choices, witch are basically all in brackets. If I select the first choice “Satz 1” ALL the “a”s change to the closed version. But when I disable it again, then the fault with the 2 “a”s comes back.

The language of the version of Indesign is German. The exact version number is 21.4.

Um die Sache noch komplizierter zu machen: in dem "echten Satz" mit dem ganzen Buch wird das Aussehen der beiden "a" umgekehrt dargestellt.
Ich habe dann zwecks Erstellung einer Beispieldatei einfach den Rahmen der Seite kopiert.
Als ich dann nur diese 4 Zeilen von Seite 4 und die Fußnoten in der Datei hatte, wurden die beiden "a" identisch und richtig dargestellt.
Sobald ich dann mehr Text davor und dahinter einkopiert habe, erschien dann wieder dieser Effekt das ein "a" anders dargestellt wird, als das andere.

Can you read this?

Hi@walter_3753, 

Thanks for reaching out and sorry to hear that you experience this. Could you please provide the information requested by the expert, including your exact InDesign version, operating system version, the language version of InDesign you're using, and whether this behavior occurs only with this specific font or with other fonts as well?

In the meantime, please try the suggestion discussed in this similar community thread and let us know if it helps resolve the issue:

https://community.adobe.com/questions-671/character-style-that-picks-alternate-glyph-873693?postid=3390820#post3390820

Looking forward to your update.

Abhishek

Is this happening with just a particular type font or with any font that you apply to the word? I tried to duplicate this behavior using the English language version of InDesign but did not get the same result that you did. Please provide as many details as to how you got this result as possible. Include also the exact version of both InDesign (including the language that it is set for) and your operating system.