How can I manage or delete the text suggestions in a text box? (English)

Hi,

I am using Acrobat 2024.002.20964 on the MAC.

When I insert a text box and enter a text, I get text suggestions through a dropdown, which were probably used in the past. (see picture).

I have the following problems with it:

• There is an x to delete an entry but, when I click on it, the suggestion is there again the next time.
• if I make a new entry that does not exist in the list, it is not saved in the drop-down list
• So I constantly have the same suggestions that are no longer useful to me, I can neither delete them permanently nor add new ones.
• The problem persists when I uninstall and reinstall Acrobat using the uninstaller.

Where can I manage these entries?

Within Acrobat or by editing or deleting a library file?

I look forward to your help!
Steffen.