it happened again and with what i now know, i would assume that the bug occurs if a player writes something or edits their short bio after i linked them in an article.
To what happened this time: my players' characters are linked to an article (type: organization) and one player changed their short bio yesterday and the link broke afterwards. To fix it, i had to go into the character, styling, and change anything in the excerpt. adding a spacing and remove it right after, or anything else, doesn't matter.
i'll try to get more information on that bug, but i wanted to share what i found out this time.